Even before political correctness, the problem with green philosophy is rooted in post-modern belief of the arbitrariness of truth. Or the complete non-existence of empirical truth. Truth is a political construct. Which opens the door to any competing belief system to assert itself, including its superiority to any other truth. Post-truth itself attempted to be the final word, but its hypocrisy was its undoing.
Trump is anti-green. He appeals to red/orange/amber mostly for that reason.