https://apnews.com/article/joe-biden-race-and-ethnicity-senate-elections-filibusters-voting-rights-407aa6edeae59bb88c52f02b511bdc2e I mean I know googling is hard but really? Assuming you weren't aware of how it was used (in the pre 1975 version) to stop Civil Rights extensively, you couldn't even type it into a search engine. So yes the filbuster does have a racist past. And how many nominees were actually stopped by those Dem filibusters you mentioned? And McConnel eliminated (or nuked if you prefer) the filibuster as it pertained to Supreme Court nominees within months of Trump taking power. So, you're either deliberately ignorant or a troll. Hope that's working out for you.