To be fair, I do think sometimes that people that might very well just be passionate activists espousing a cause they truly believe in could benefit from taking some care to account for the fact that there are going to be a good number of people reading what they are writing that aren't already inundated with the conversation. I personally agree with statements that we don't need to be defensive about labels. I.e., if someone calls out "gamers," I know they're probably not talking about ALL gamers. I don't need that spelled out for me.
However, the conversation can go a little more smoothly I think if some take steps to clarify just who specifically they are talking about. The conversation is contentious as is. The situation isn't helped when people proceed to just talk past each other because nobody is on the same page.
I don't disagree, but you're talking about the form and tone of conveying an argument, whereas I am addressing the false equivalence between marginalized and harassed individuals exposed to hate speech and someone who feels hurt because their self-identified label is being criticized.