A lot of incredible science would be involved. And much much more money and a lot of time.
If we (humanity) could achieve that, that would be really cool.
But: how much solar-, wind- and battery-farms could we built with the same money and in much less time?
Fusion is great, but it will probably not be the solution of the energy demand we currently have. Nevertheless it’s something we should pursue furthermore. But we shouldn’t bet everything on it.
That’s why I switched sides. From programming myself to developing functions and writing requirements which someone else can implement into code. :)
I could do some programming (did embedded C), but surely I wasn’t the very best in it. So now I’m the guy who defines what a small (but essential) part of SW has to do which will run in hopefully a few million cars in a couple of years. :) Much more fun (and money).