Do you have any sources for your claim? Some people are spreading misinformation that DePape was a leftist and not aligned with Trump, so maybe you should check your sources on this.
Similarly some people are (or were) spreading misinformation that Jan 6 attackers were NOT Trump-supporters. It's like a knee-jerk -reaction for them, claim the opposite of what really happened :-)
This turned out not to be true. The attacker wasn’t a Trump supporter.