I think this is an unfair article, and it reads like someone who's obsessed with right-wing talking points substituting their political allies and enemies with Texas and California.

The real relevant section is the one right before you posted the chart. Texas is bringing people building data centers, Bitcoin mines, and has a high demand for air conditioning, therefore it has a massive power demand that California doesn't have. It's unreasonable to expect Texas to compete with California on a metric of Clean GWh per Total GWh when California has less than half the power demand. The fossil fuels infrastructure is already established so of course it is going to be relied on in a place like Texas to support their ventures into data centers etc.

I think a better perspective is to notice how, despite a reliance on free-market forces (and as another commenter mentioned, a relationship between politicians and oil companies) Texas' clean energy scene has grown to be the biggest in the country. It clearly indicates that there is an apolitical nature to the inevitability of clean energy. Anyway I prefer that conversation to getting swept up in whatever Matt Walsh has to say.