BLM isn't even trying to hide it, they just penned a message to Biden which said (TLDR): We delivered you the vote, now we want payment, implement our agenda or else.
If the radicals won, they will implement their agenda, Biden has promised us, Kamala has promised us, those that think Trump was bad, wait until you get President Kamala, Senate leader Sanders and House leader AOC.
They will take your guns even worse than Obama and Clinton did (remember the "assault" weapon ban and capacity limits on bullets was just ground work). They will take your land even worse than Obama and Clinton did (remember the Federal confiscation of private and public lands under Clinton/Obama for "nature preservation"). They will raise your taxes more than the 10% under Clinton and 15% under Obama (Biden has already promised a 25% tax raise on the poor, 35% on the middle class and 110% on businesses and business owners)