Meme criticising the US two-party system deleted from lemmy.world; now I'm not allowed to post political posts at all

I posted this meme to the Lemmy Shitpost community. I reckoned that it might generate a bit of debate, and would probably end up locked, but the entire post got deleted, and moreover, I'm now forbidden from sharing political posts to the community. Political posts are not against the rules of the community.

I have reason to believe that the post was deleted not because it was controversial, but because the moderator (Decoy321) disagreed with the political slant of the meme. The reason I find this suspicious is because other controversial posts, such as one about veganism remains up, and Decoy321 seemed to enjoy the fact it was controversial: