Why are you looking to “overcome” an organization you don’t agree with? I can’t stop the Federalist Society from existing just because I disagree with their views. From what I can tell, BLM is doing nothing illegal: it’s not encouraging or hate or violence. Personally, I don’t see anything extreme about the “what we believe” page. I would agree with most if not all of it. If you don’t like that, and if you don’t like…
What I think is worth 'overcoming' is a sentiment that if one disagrees with the goals of blacklivesmatter organisation it shouldn't mean he/she is racist, insensitive etc.
I work for a company from USA and I have been 'outed' for not sharing black lives matter hashtag and whatnot, I don't feel I can safely say that I disagree with some points - I talked to handful of people privately and I met with literal outrage. I think this is really problematic.