There are very few ‘real’ Karens. Nowadays, anyone that speaks out against BLM or Antifa is considered a Karen, black people included (blacks that go against the communists are now called “Oreo’s” for being white inside but black outside).
Do note that only ~25% of whites and 30% of blacks agree with BLM statements, everyone else says All Lives Matter is less offensive. So this is a loud minority which is promulgated to promote Biden amongst the black community (BLM’s donation system is an arm of the DNC fundraising system ActBlue, which will funnel the funds to Biden’s next presidential campaign)
The only way to fight this is by voting for Trump, even if you don’t like him, do you really want the rest of the US becoming like Portland or Seattle or LA or NYC?