Why should I be stopped from talking about my sexuality? That's a kind of speech law

I don't think you should be stopped, merely the return of a social convention.

Regarding racism

I used to think that way. The 90s color blind ideal is how I was raised. However, it is flawed. As an example consider the stereotypical spooky dark alley way. If you are true to your ideals you'll be as likely to use the alley as not whether there is a white woman there, or a large black man. Obviously that is a foolish thing to do. So logically your system is flawed. And when you start with a bad foundation, building on it compounds the errors.

as several others have done in this very thread

If you want a really comprehensive answer you'd probably find racist, ask s/DebateAltRight. These guys aren't the hillbilly gun totin' beer swillin' dumbass rednecks portrayed in the media. They're some smart guys over there, a lot of former liberals. Actually that's pretty common on Saidit, but those guys particularly care about race.

The short version is it's kind of telling between the black crime statistics, and how black people when left to their own devices not only don't accomplish anything, they tend to destroy what the white folk built up. But the guys in that sub do a compelling write up.

You could ask "Are you using the word racism here as a silencer?

Racism is a negative word. You are attributing people's beliefs here to racism, an unfounded hatred based on ignorance, but that's not what this is. Nobody wants to be called a racist, and saying certain beliefs are racist has the effect of quelling the discussion.