I'm partial to "terracide". Pair it's adjective(?) form, terracidal, with "maniac", "profiteer", or "tyrant" and you've really got something.
If we're looking for an overarching ideology, "terracidalism" works for me, giving us the companion word "terracidalist".
Writing this out, I have to say I like the sound of "Trump: terracidal tyrant." It's short, descriptive, easy to grasp, and even has that sweet, sweet alliteration, so useful in slogans, signs, etc. Replace the ":" with "is a" and you have a nice chant.
I'm a Canadian. We still frequently refer to our Conservative party as Tories. That gives us "Tories: terracidal tyrants." The chant would use "are" instead of the colon.