For the record, I'm not against nuclear. I'm very much in favor of it. We should power the grid with fusion if we could. I'm just skeptical that fusion is going to be able to do it any time soon. It's decades away, at best.

while things like cars can be made electric or partially electric (i.e. Hybrid), many very important things cannot be, such as trains

Trains can actually run on electricity for the most part. On the other hand, it will take much more effort to turn the entire car fleet electric.