Nobody has direct evidence of the shooter’s motivations or political affiliation today. Nobody.

From the texts between him and his roomate that have been publicly released. Source: theguardian.com/…/charlie-kirk-shooting-prosecuto…

“Roommate: ‘Why?’ Robinson: ‘Why did I do it?’ Roommate: ‘Yeah.“’ Robinson: ‘I had enough of his hatred. Some hate can’t be negotiated out.”

So, we have his direct statement to his transwoman roommate as to his motive, either you can take that at face value or claim it’s some carefully crafted lie intentionally meant to deceive us as to his real motives. You do you.