"This is virtue signaling" is more of a dog whistle ingratiating yourself with a certain crowd instead of an argument. Don't know what youre trying to achieve besides that.
Genius move. Any concept that can be used to criticize you is implicitly outing me as part of your out-group. Now you can judge me not on my own merits, but on the merits of people you associate me with. And my posts can well-formulated and thought-out, you disregard them for factors i cannot possibly control.
This is the partisan thinking that i don't want to have business with. This is what i ghost people for. Call it cancelling if you want to, fact is, if you are walking through the world looking for friends, my place is the wrong address.
Judge me by my own merits, not by some other random people you picked.
Edit: After showing this to her, my wife straight out told me that you are psychotic ("einen an der Dattel haben") and that I should not argue with random internet people. Thinking about it, she is right.
I don't think recognizing that is conflicting at all with a positive outlook, or the choice to be optimistic, or a humanist, etc. You can choose to believe it or choose not to believe it, and still value human life and try to progress humanity forward.
Also don't underestimate the value/incentive of following your conscience, acting out your beliefs etc. Cognitive dissonance (which results from not doing so) is deeply uncomfortable and a good motivator for being "altruistic."