The thing about Three Mile Island is that it was a nothing burger. Hell, Unit 2 was operating up until 2015, and is now being refueled to be restarted. Even when you look at Chernobyl, it's now one of the biggest and best nature preserves in Europe. Life still lives there, just not people. It's not some toxic contaminated wasteland covered in a miasma of chemical filth and devoid of life.

The containment structure did its job, what it was designed to do and contained the partial meltdown. No contamination was released and no meaningful amount of radiation escaped the site. The oil and gas lobby then took it upon themselves to pour resources into anti nuclear crusades, to further ingratiate the fuels they have a financial interest in maintaining the demand for.