Don’t know what you mean by the concept of base and superstructure being “insane.” It’s a general observation that the way we produce shapes our culture, which reinforces the way we produce.

You’re also fundamentally entirely wrong about communism. Communism isn’t when you have a bunch of tools in a pile and everyone can walk up to it and use it, then throw it back into the pile, or anything, it’s a fully collectively owned and planned industrial economy. The tragedy of the commons doesn’t apply to, say, the post office, as an example.