Usa left ( the liberal one ) it is not the same thing as the classical ( socialist/communist ) left. Liberals are a product of the capitalism. North Korea is a socialist country.
Btw: never seen so many downvotes as in american theads. ( left and right ) you have really an huge hivemind.
I have noticed that a lot of leftist memes are just walls of text. Right-wing memes tend to be concise and to the point, often only containing a few short words. They target very different demographics.
Edit: this was meant to roast the right for being simple-minded, but I worded it poorly.
I think the science actually supports this. Studies have shown leftists tend to be more self-critical and are concerned for the nuances - the "shades of grey". So their memes must cover more angles of an argument to be effective. Right-wing are more black and white thinking, and don't question themselves once they make a decision. So their meme's are straight to the point and simple (and usually so full of logic holes and lacking in comedy that leftists say: "the right can't meme").