No, that is absolutely not what you said. You said, and I quote:

"It's literally not possible for you to be oppressed or to suffer any particular injustice from anybody of any different identity."

Period. See the period? That's your period. That's the end of your comment. There is no more.

You didn't say anything about announcing. (Even then you'd be wrong--the risk is low, but hate crimes do exist.) You said that because of his identity it was literally impossible to oppress him or commit injustice against him.

Are you sure you don't want to rephrase?