A pox on intolerant dualist culture.
We're not not simply male/female, black/white, gay/straight, chaotic/ordered. We are sentient beings spread across a wide range of modes and that compulsory, illusory choice between 'us' and 'them' is destructive to everyone. 'Them' is a lie. We are all 'us', regardless of how we speak, what we eat, where we live, when or if we pray, or how we make love.
Forcing folks into a box that doesn't suit them is not just wasteful, it's rude and unkind. Deriding people for not choosing to reside in a box is ridiculous. Killing them for it is foolish beyond permission.
Cherish difference because with diversity comes stability. Healthy ecosystems are rich in niches. They weather change well.
When you dehumanize others-regardless of why- you're devaluing your own merit as a human being. And because I'm human too, you're devaluing me. 'Them' is a lie, remember. 'Them' is a way to tap into your reptilian hind brain and get you to react without thinking. 'Them' is fear goggles super glued to your face. The only genuine way to get 'them' to go away is to accept that they are 'us'. And that means when you scream at them, beat them, burn them, force them out, kill them what you are actually doing is abandoning yourself. You are the banality of evil.
Be courteous. Nobody said any of this was going to be easy, but it's necessary.
And (tangent) for pity's sake, don't forget to tip your waitstaff.