> China aren't offering a cheaper solution. They are subsidizing an existing one (which is already subsidized) in order to gain foothold.

In my economics classes, we were told that (in a "free market" argument) the best thing to do if a subsidy is making something you want cheaper is to use it. You're getting your thing, and at a reduced cost.

(I'm not really replying to you per se, I'm curious how "free market" folks in these comments would respond to this.)