Well I agree with you there. Just pointing out that this they basically cutting their nose to spite the face. They might see some short-term gains, but in the long-run..it will disproportionately impact them more.
I wrote hastily, and forgot to point the most crucial observation: I do not care about Trump's supporters, but I also suspect that he does not care either.
But even that is not the most salient point: it does not matter if my suspicious is right or wrong. The bottom line is that, whether Trump cares or not, if his policies turn out hurting his voter base, he will never be affected by it.
It's a terrible situation: the long term policies of a powerful politician have absolutely no way of affecting his political career.
He can rejoice in short term benefits: rise in popularity if the economy improves short term or, in the very specific case of Trump, short term financial gain thanks to his very complex network of business interests, while destroying the planet for good.
and that will hurt Trump's base supporters more than any other group. The ones that still work in manufacturing that the U.S exports.