Hundreds of conservative operatives outlined a plan that Donald Trump, or any Republican, could use to purge climate action from the federal government.
Conservatives will be the end of modern industrial society as we know it. And once things get bad enough I have absolutely no doubt they will blame everything that goes wrong on "leftists" (ie. anyone left of the Strasserites), right-wing terrorism will escalate and half the people will actually either outright support them or at least accept it
Only thing you can really do is to get involved in stopping them. If you're in the US, that means looking up close house and senate races. Pick one or two close to you, and then support Democrats running in them with both volunteer time and money.
I'm Finnish so I'm lucky in the sense that we have more than two options when picking a political party, and eg. I vote for a democratic socialist party called the Left Alliance.
On the unfortunate flipside half the country is very conservative compared to the rest of the Nordics, and our new government – who got in power by lying ceaselessly about the previous lefist government (first of its kind in almost 20 years if not more) and what exactly led to eg. our healthcare system collapsing (pro tip: it wasn't leftists, but our "fiscal" conservatives cutting funding) – has literal neo-Nazis, and the ones who aren't outright Nazis are so right wing that you wouldn't really know the difference. So bigotry is now the norm (up to and including MPs and ministers having publicly fantasized about murdering leftists, immigrants and/or gay people) and our new Minister of the Environment is a climate change denialist.