The first nuclear build out in the US was already running into serious problems before TMI. Its collapse is due more to cost problems and the unleashing of market forces on the grid via PURPA than it was to TMI.
Fukushima had little to do with the collapse of the Nuclear Renaissance; it was the advent of cheap natural gas from fracking. New nuclear made absolutely no sense in an environment where NG was under $3/GJ and combined cycle power plants with a thermal efficiency of 60% could be built for $1/W(e). Cheap gas is also a big part of why everyone stopped building new coal power plants in the US. The last large (> 100 MW) coal power plant to come online in the US was in 2013.
If you could choose to live next to TMI with the knowledge that the TMI accident would happen at some point while you were living there or next to a coal power plant, TMI would be the correct choice.
If those never happened, I suspect we'd have far more nuclear energy today.