I don't hate JWs, I just know they are false teachers. They think Jesus was just a nice guy and not God, they don't believe in hell, and they have their own weird version of the Bible. I dislike that they try to come off as some sort of Christian sect when in fact they are not. You can't be christian and not believe in Jesus. If they would admit they are just a different team already, then fine.

If they come to my house I am polite with them, and they are polite with me.

I think a lot of people "hate" or dislike them because they don't like people coming to their door talking about religion. That's pretty simple. Most people don't like strangers at their door, no matter what the reason.