Here is a very good video on the issue in Texas a year or so ago.
It does not go into the political, just the mechanical issues they had. It does a very good job on telling you why things happened the way they did, and leaves you to draw your own conclusions as to if the train is on the correct track or not.
I'm very aware of what happened. I'm not defending the generation path. I'm just saying the "grid" is not as tenuous right now as alarmist want you to think.