I can’t remember who said it (it might have actually been Stalin) but the “works in theory but not in practice” idiom is bad and should be abandoned. Political theory is for the purpose of practice. If it fundamentally does not practically work, then the problem is with the theory. If it isn’t fundamentally broken, then you can’t speak in such generalizations about it.

Conservatism is vile when you drill down into what they are saying and don’t just let them wax poetic about pastoral bullshit and wealth. You don’t even need to look at the real world, you can get their hate from the theory once they start talking about the poor. Marxism in no way resembles this.