The most fundamental argument against Communism, well established by Mises, is that not only it fails catastrophically in practice, but it's fundamentally flawed even in its own ideal theoretical frame: Communism proposes to solve The Calculation Problem via central planning, declaring that infinite, random variables are manageable by a small group of people in a deterministic way. The Pigeonhole principle implies that assumption is physically impossible, which is one of the reasons Communism, in it's inability to manage the entirety of reality in a deterministic way, tries to reduce nature. That's why it always tends to denaturalize men: only grey colour, single wardrobe line, single thought, only one state media, only one approved book, only a set of approved food, only one car company, etc etc etc. The inhuman nature of communism is actually a visual symptom of a desperate attempt from the omnipotent central planners to reduce reality to something they can manage.

So in strict terms, I would change the meme and place the "Communism in Theory" text right above where the "Communism in Practice" text.