If talking about Islam,what are those harmful teachings & ideas ?
Here are a few, for starters:
• The concept of Hell and eternal punishment. In my opinion, that concept fosters intolerance to people of different beliefs, lack of compassion for them, and support for literally infinite violence in another life or realm of existence.
The main thing I find to be interesting—albeit in a very negative way—about the concept of eternal punishment is that if we were talking about any authority in the world and attributed such threats of violence, torture, and infinite suffering to it, most people would meet them with rejection and condemnation. But when attributed to a deity, over a
billion people seem to have absolutely no problem accepting and even glorifying them as a sign of "greatness," "power," etc., at times.
You even seem to have started this thread to ask people about their opinions on the Qur'anic descriptions of disbelievers while apparently being in agreement with those descriptions yourself, so I can only ask if you also agree with the other things mentioned in the Qur'an about the supposed fate of the disbelievers:
Qur'an 35:36 said:
And for those who disbelieve will be the fire of Hell. [Death] is not decreed for them so they may die, nor will its torment be lightened for them. Thus do we recompense every ungrateful one.
Qur'an 35:37 said:
And they will cry out therein, "Our Lord, remove us; we will do righteousness - other than what we were doing!" But did We not grant you life enough for whoever would remember therein to remember, and the warner had come to you? So taste [the punishment], for there is not for the wrongdoers any helper.
Qur'an 39:71 said:
And those who disbelieved will be driven to Hell in groups until, when they reach it, its gates are opened and its keepers will say, "Did there not come to you messengers from yourselves, reciting to you the verses of your Lord and warning you of the meeting of this Day of yours?" They will say, "Yes, but the word of punishment has come into effect upon the disbelievers.
Qur'an 39:72 said:
[To them] it will be said, "Enter the gates of Hell to abide eternally therein, and wretched is the residence of the arrogant."
And these are just a few verses; there are many others with far more graphic descriptions of the torture in Hell, including descriptions of beating people with maces, making them wear garments of fire, forcing them to drink boiling water, and burning their faces with fire, among other things.
• Islam teaches that homosexual behavior is a huge sin and aberration that is deserving of severe punishment, which is considered by most Islamic scholars to be death. Yet there's
scientific and medical evidence showing that homosexuality is widely practiced in the animal kingdom, which also indicates that sexual orientation isn't really a choice. So, in my view, designating homosexuality as an aberration is no different from saying that a particular skin or eye color is an "aberration" that warrants severely punishing the people who have it.
• Several aspects of Islamic laws, such as flogging for premarital sex. If all involved parties are consenting adults, then why should we even care about what people do in their bedrooms, much less punish them for it? I understand that centuries ago, there weren't any birth control methods and so people had to be extra careful to avoid unwanted pregnancies, but we have more than one contraception method now. Viewing the laws that forbid premarital sex as absolute and suitable for all times seems to me to be an extremely rigid mentality, especially when there are many people who aren't married and still have perfectly healthy and happy relationships with each other.
And I think this issue and the homosexuality one are largely intertwined: they're both about dictating what consenting adults should or shouldn't do in the privacy of their bedrooms for no good reason. You asked me which teachings I found to be harmful; if there were ever a clear example of dogmatic teachings influencing people to systematically discriminate against a group of people and deny them their basic rights, it would be teachings like those two.
Imagine someone telling you that they have found two bacteria doing unspeakable acts on a grain of sand, and that what those two bacteria do on the grain of sand angers them and incites their wrath. That's exactly how I perceive religiously inspired threats and "warnings" to people because of things they do in their bedrooms.
You seem to have this view that disbelievers are such terrible people, FearGod, but many of them would never wish torture like that described in the above verses to be inflicted on you. Disbelievers are apparently supposed to be "evildoers," liars, deceivers, etc., yet the people who usually claim such things are the ones who wish
endless violence and torture on others without a shred of hesitation.
When you have met a large number of disbelievers like the ones you describe—the ones who "fight religion," as you put it—who wish you and other believers eternal suffering in some sort of extremely violent, grim, and harsh abode, let me know, FearGod. Until then, it seems to me that you're making unfounded assumptions and generalizations about a broad group of people based on your reading and interpretation of religious texts rather than actual interactions with other people.
On the other hand, I have drawn my conclusions about certain religions and their core teachings from actually reading those religions' scriptures and main texts as well as interacting with many of their followers—many of whom apparently have no problem generalizing about others and accepting verses saying that they will be tortured for eternity.
But do you have a sound evidence ?
Sound evidence for what? Your statement would have to be more specific for me to be able to answer this question properly.
Maybe. As things stand, though, I believe the probability of that is very small—practically negligible due to lack of evidence.
I am talking specifically about Islam and not other religions.
Then see above.
There are some clear signs in the quran that can never be said by a Bedouin living in the 7th century.
So how to oppose a clear sign,for example one verse says the universe was one piece and that God keep expanding it.
How to deny it ?but yes the disbelievers do and even work against it.
"Clear sign" can be rather subjective; perhaps what you find convincing isn't really so to other people. Have you considered that maybe you're the one who needs to investigate other people's claims in case you're wrong about what you state with so much confidence?