They definitely complain about the tankies being a big part of the culture of Lemmy, and housing some of the biggest communities, but the statement in the comic isn't even remotely a thing neolibs or the .world demographic says
So this comic kinda just feels like a strange, confusing straw man...
The only times I hear of tankies is from how annoying they are in online forums, their only power being in their subreddits and lemmy instances. The only references to Marxists are from idiots repeating MAGA talking points.
The meme is really self explanatory though. I'm not going to think for you. If you get it then its funny, if you don't it isn't my job to hold your hand. Feel free to use the downvote button that doesn't even federate to my instance.
This is a self explanatory meme, get some fucking perspective. Leftists have been fully destroyed around the world yet every meta thread on lemmy.world are people in a panic about "tankies" which maybe count in the dozens world wide. Chill out. The stress from being so self righteous might give you cancer.
It is quite literally a memes community dude. Feel free to make use of the block button, I sure don't want to hear from you ever again and will be doing so.