I want to say, that I have memorized in Arabic the entire suratal Baqarah.
Why? Don't you have a copy?
Talks about those who have been warned and turned away (and Allah knows already who will believe or not) no matter if you warn them or not they will not believe --and in saying that, in Islam gives them the choice. So it isn't Allah misleading them and since he already knows who will believe or not, he puts a seal on their hearts (from their own making and Allah says they deceive themselves).
"Allah has set a seal upon their hearts and upon their hearing, and over their vision is a veil. And for them is a great punishment."
Why does Allah fix their disbelief? Why has he made it so they cannot believe, "even if they are warned"?
Allah wants everyone to worship him. It's the only reason he created us (needy much?). So why does he stop people from believing?
If you are going to say that god knows the future and knows they will never believe through their own actions - then why does he place the seal? It serves no purpose - except to make sure that there is absolutely no possibility of them believing, which again makes no sense.
Talks about how he created punishments for them.
Why do disbelievers need punishing? What is wrong with not worshiping Allah? How does it harm or affect Allah? Where is the harm or loss caused that requires punishment?
Which is perfectly normal for one who goes against God.
Only because that's what god does - and there is no rational explanation for
why he does it.
Talks about those who cause corruption on earth and they claim they are coming in the name of peace. (sound familiar?)
Ibn Kathir explains that "fasad" includes things like disbelief and disobeying god's law.
Also, "cause corruption on earth and they claim they are coming in the name of peace" could well describe any imperialist conquest, whether Christian or Islamic.
so when you say, what you read it was a shock to you...maybe you could reread it now and understand that what I am saying is a better enlightenment into the understanding of the first few things you read.
Even the opening passages that you cite contain description of terrible punishment for simply not submitting to Islam (even when it is Allah that prevents belief). Do you really not see how that concept is unacceptable to civilised socially?
Remember, when it talks about the unbelievers and hellfire they will face, remember it is not Allah that is just choosing,
Of course it is! Allah didn't have to create hell. Allah doesn't have to torture disbelievers for eternity. It is his choice.
It's like a person claiming it is not their fault they are torturing a child because the child chose to accept the sweeties and get in the van.
In the Quran, it says the beginning of the Quran,
This is the Book about which there is no doubt,
Another mistake in the Quran. There is plenty of doubt. Not just with the majority of people rejecting it as ancient superstition or a false religion, but even Muslims disagreeing on what it means.