Isn't the reason obvious? Healthcare in the US is an insanely profitable and powerful business. If everybody gets infected, tens of millions will need expensive treatment the rest of their lives. Healthcare will make tens of trillions dollars. Remember the anecdote that there are no laws that big capital wouldn't break for the 3x profit? Here we are talking about profits comparable with the entire world's wealth. We have an opportunity to witness this sociopathic system in its nature state: the virus needs 1-2 months to spread everywhere and during this short period, the healthcare system is going to openly block any attempts to prevent its spread. After that it's going to open the gates and let the tests, masks and vaccines flood the market.
There aren't "tens of trillions of dollars" people can spend on healthcare. Making everyone sick collapses the economy, and these companies would be negatively impacted by it.
Face masks are running out in many countries, not just the US. This isn't really a product of the atrocious healthcare system the US has, it's just a product of not being well-prepared for disaster scenarios.
Think about how most companies don't check whether their backups work. Now, replace "working backups" with "stocked-up pandemic supplies".
You don't need to wait to do some basic logic checking on your post.
You said it yourself: "Here we are talking about profits comparable with the entire world's wealth". What do you exactly think is going to happen if americans try to spend "the entire world's wealth" on health care?
I don't believe your implications but even I could make a more convincing case for them than that.
