"Why do people hate Muslims?"
I'll tell you why *I* hate Muslims. I can't speak for other people.
1. Every, or just about every Muslim-predominate area of the current world is atrocious for human rights. Every area where Muslims are the majority religion can be assumed that women do not have equal rights, children are viewed as property, religious police are looking for every opportunity to assault or imprison citizens, and the government is corrupt.
2. Please remember #1 on this statement: Muslims are out-breeding everybody else and spreading across the globe as if it was the mission to overtake the planet (hint: it is). There have been many statements on this by prominent, important Muslims, but to condense it- the idea here is defeat of Christianity, every other religion, and every non-Islamic nation without the use of war, but rather by infiltrating through immigration and breeding as many Muslim babies as possible. It is very probable that in my lifetime or my children's lifetime, the dominant religion of the planet will be Islam. Now, that wouldn't be such a bad thing, but may I remind you of the points in #1.
3. Before I start this point, I'd like to say it is possible to condemn a religion's CURRENT actions without exonerating other religions' past actions. Every time this point is made, someone spouts up and says "well, Christianity has been violent in its past!" Well, apparently the Christians are evolving to become more civilized human beings, because the violence in the name of Christianity in our educated, modern world is practically nonexistent when compared to Islam's current barbarism. So while the Bible has some gnarly passages regarding killing enemies, modern day Christians seem to realize, for the most part, that you may not like someone else, but you have no right to just to murder them. Whereas, what are large groups of modern day religious Muslims doing? They're conquering other people through mini-wars, raping their women as sex slaves (which, by the way, is given the A-OK in their religion), murdering anybody they can (be it other Muslims that just aren't their "type" of Muslim, or other religions, and training their children from the crib to die for Allah.
4. If you think that #3 is just coincidence, I'd like to bring up some interesting tidbits. First, in Islam, everybody goes to hell. Believers go to hell too, where they are punished for their earthly sins before being able to go to paradise. But, there's a way to avoid this terrible fate and just jump the line right to the good stuff- fight in a religious war in the name of Allah. If you kill someone in Allah's name, that person takes your place in hell. Plus, sex before marriage AND masturbation is forbidden in Islam, BUT if you capture women and girls in a holy war, you've got the green light to rape them and force them to be your wife if you'd like. Add to that, if you're a psychopath that wants to kill someone, Islam says kill a non-muslim, because it is forbidden in the holy book to put a Muslim to death for killing a non-Muslim. So, in less words, #3 isn't a coincidence, the entire religion is designed to encourage violence, not reduce it.
5. As a mother of two young children, I find myself being very sensitive to child abuse. Naturally then, I find myself disgusted that people are following a prophet that married and had sex with a prepubescent child. When Muslim nations try to reform their child marriage laws and make it so that girls have to be a bit older to be married off, they are met with strong resistance by Muslims that claim that because the prophet did it, it is not only okay, but GOOD to marry little girls. Girls are dying because Muslim men are marrying them and having sex with them, and their tiny bodies are breaking just through the act of intercourse. That knowledge could be my only knowledge of Muslims and I would still hate them, without additional reasons needed! Yes, other people in the world abuse children, it is not limited to Muslims, but this isn't about rogues making bad decisions, this abuse is sanctioned in scripture and CURRENTLY used to encourage the abuse of little girls, and I will never find that okay. Heck, even the Islamic view of heaven is for men to be rewarded with "hoor", which translates basically to young virgin girls. So, not only are women and girls nothing more than property in the here-and-now, but even in heaven they are just rewards to the men. Why treat women and young girls as if they are PEOPLE with FEELINGS if your own God is waiting to distribute little virgin girls to you after death? It makes me sick.
So there you have it, the reasons I don't like Muslims. If your question was sincere, you have at least one sincere answer.