That's Comrade Earnhardt!

Serious: Dale Earnhardt is/was a cultural hero for rural conservatives, as he was one of the greatest NASCAR drivers of all time, so it's been fun for Lemmy meme artists to use his likeness for aggressively left-wing memes. It's a little bit "Ha ha funny NASCAR man makes memes about communism" and a little bit "conservatives will believe anything delivered to them in meme form so let's capitalize on that".