I don't understand the meme. It doesn't even make sense ironically. I assume it's agenda of the insane, a troll, or misclicking off shitposts—though I imagine it wouldn't even make sense there.
I'll just land on the assumption that OP is nonsensical and "memes" are their outlet of instability.
Kneeling for the US flag is kneeling for an imperialist bourgeois state, which is incompatible with communism at the most fundamental level. This meme looks like a patriotic socialist