I think that something that many Trump supporters miss is that any increase in power in the presidency goes both ways.
They cheer when Trump, for example, deports legal US citizens, defunds universities that do not follow government mantra, ignores parts of the Constitution and uses the FBI as a tool for revenge because all of that is "owning the libs."
But that sort of power doesn't "go away" once someone else is in power. Imagine a new democratic president that declares an emergency and creates, via executive order, a requirement that anyone who wants to own a gun get a federal license, to save the thousands of children that are killed every year by firearms. They are not violating the second amendment - heavens no! - because anyone can still get a gun as long as they get a license. Of course, in order to save money, there won't be many places to get that license; having a lot of licensing centers is a waste of taxpayer dollars.
Or an emergency ban on gasoline/diesel for any vehicles over 4000 lbs due to the climate emergency. There will be exceptions granted, of course, as long as the person can prove their need. Like politicians who need armored limos and democratic contributors who have proven their loyalty to the government.
Then an executive order (titled something like "protecting your vote from electoral crime") that bans criminals from voting. Which, of course, include people who own guns but aren't licensed, or people who still drive those over-4000 lb vehicles. Anyone can still register to vote, as long as you can demonstrate you are not one of those criminals.
Power doesn't go away because "well, we didn't mean for them to do THAT with it!"