Because the opponents of it have the deepest pockets of literally anybody in the world.

A whole class of parasites who have made their lives as highwaymen on the densest energy source (outside of uranium) -- that literally comes out of the ground -- have spent at least the last 20 years actively suppressing alternatives.

In some places (see Alberta, Canada), they have literally outlawed renewable developments.

In this context political advocacy, education, and subsidy remain absolutely imperative.

There is no "free market" way out of the current situation regardless of how economically viable solar is. In the real world markets and power are intrinsically linked.

It's also actually also an emergency