We have plenty of capacity to make all the insulin we need and more, it's a more profitable business when there's short supply. We have an infinite capacity for greed.

Exactly, that is free market capitalism.

What agenda do you think drove the "masks are for sissies" COVID response?

That one I’m not sure about, but I can’t think of a way it’s money related. However, the prevalence and cost of masks definitely went up during the pandemic, as most people did mask up. Some other supplies also went up in price, like microphones and cameras for computers as everyone started working from home.

Labels like capitalism and communism are more window dressing than actual function

Nah fam. There's no point in labeling sets of ideas if they're rendered useless the moment they diverge from your imagined "pure" form. Being more complicated in practice than just a simple textbook definition doesn't mean they aren't "that" defined thing, it means textbook definitions are always fundamentally weak and flawed. Oversimplifications, models used to describe, not blueprints used to build.

Capitalism is roughly everywhere, underpinning everything globally because of its roaring success. Communism is roughly nowhere, for the same reasons of capitalism's overwhelming power.

The distinctions exist and matter.