It's the only ideology that thinks Charlie Kirk is important enough to assassinate. To the left he's an annoyance but there are much bigger Charlie Kirks than Charlie Kirk. TPUSA is so far down the list of things creating fascism. To liberals he's apparently baby Jesus. To republicans he's an asset. Only right-wing accelerationists have a motive because they're the only freaks who shoot up anything and anyone thinking it will spark a civil war. He makes a good sacrificial lamb if your goal is to make right-wingers rabidly homicidal or invite a fascist crackdown, but for everyone else he's just a generic influencer and punching bag.