The presidency is not the only institution in the US government. Trump might wield great influence as the president, but we also have the Congress and the Courts that can put him under checks.
Three things:
1. As president, Trump can do a LOT within the existing system, since he has complete control over agencies like the SEC, the FTC, and so on.
2. Trump has absolute control over his party, who will presumably win a majority in Congress if Trump wins.
3. Trump is a convicted criminal and indicted on over 100 more counts--and his voters clearly don't care. In other words, US voters will be voting for a politician who breaks the law with impunity. As such, it would be pretty silly for Trump to worry about pesky little things like, "the law"
.
The US government couldn't fully "destroy" Bitcoin, but changing the laws absolutely could cause it to drop in price by at least 90% as most major holders of Bitcoin are American.
The US might be the leading country in crypto businesses. But it doesn't mean that Bitcoin will not survive without it. If the country becomes very hostile to Bitcoin, crypto firms will move to other locations. It might be a painful transformation but it might be a move worth taking. I assume that most people thought that China was indispensable, but Bitcoin is doing just fine would out them.
Sure, it can do all of this, but with 90% of Bitcoin's investors missing, it's going to lose most of its value--especially if those same investors are given a
alternative i.e. Trump's coin.
And nobody ever thought "China was indispensable" because they aren't and never were. Where did you get
If you want Bitcoin to remain at its current price levels, then American investors are... indispensable...