Correlation is not causation. People skimmed through old posts on his social media, and immediately came to the conclusion that he was seeking to kill white people and was motivated by Black Lives Matter and was a prominent member, or whatever.
I'm waiting for you to come totally mask off and use the term "anti-white" with me. White people are not oppressed in America because of their skin color, and there isn't a left-wing agenda to do harm to white people. Leftists like myself do oppose whiteness, that is, white supremacy and white privilege inherent in our systems and we want that dismantled. This alone is causing snowflakes like Cucker to cry that the left is undermining the very 'foundations' of America!