I am not able to ban people from the web. I don't have that power, nor would I want it.
As for percentages, I suggest you speak to people. Ask them if they think it is ok to be gay. You can probably look up the statistics for your country - but in most places, people are tolerant.
Ask your friends and family if gay people should be banned from studying at universities. Ask them if your city should only allow white residents. Ask if they think it is useful to build wheelchair accessible buildings.
In my experience, it probably is only the 0.5% that you experience. We agree!
But then ask them whether people who bully minorities should be welcomed in polite society.
I'd be fascinated to hear what they (and you) answer to that question.