I think a far simpler explanation is the general public thinks of NIMBY as "Bad", and then assigns which part of political ideology that is as opposite of thems

I think a far simpler explanation is the general public thinks of NIMBY as "Bad", and then assigns which part of political ideology that is as opposite of themselves. It doesn't necessarily have any basis in reality and doesn't necessitate caring about what reasons individual people have for being NIMBYs.