One of my favorite internet apologists has a saying that people who don't have good arguments have to resort to bad tactics, and for many people that I've had conversations with (especially among the left, but also among the right) this has often been very, very true.
While I don't support BLM/M4BL (the hashtag, not the sentence), I do think that several valid points have come up. And even though I disagree on their conclusions and sometimes their methods, it has at least caused me to think critically about how I understand the situation and what should be done about it.
I hope that the future can continue to be a place where we don't think of ideas as either "safe" or "unsafe". Any view we come across that challenges us can frighten/scare us away. Maybe it causes us to change our views, maybe it doesn't, but the introspection is valuable. I feel that's what a lot of people who want to silence debate are missing. Perhaps they don't want the introspection. Maybe they just want an echo chamber.
Regardless, let's fight for a world where ideas aren't crimes, and that people are strong/wise enough to debate and engage them in a way that makes everyone better.
I think it's important to consider the primary audience here. If this were a Wikipedia article, a neutral perspective would be important, yes. But this isn't a Wikipedia article. It's a persuasion piece aimed at the members of the left, and writing from the perspective of the left (or at least not from blatantly outside that perspective) makes it more effective.