My take: I don't think Trump's and Musk's goals are as much to take over the country, as they are to destroy it. They are also taking apart all the departments that can contain a major epidemic. And the FAA.
Yes, they are allowing the rich to be able to swindle people, and unlimited power for the rich. They can take the money and flee elsewhere.
I don't think they can hold on to power forever.
Rather the US is being set up to become a failed state, and possibly a civil war. All the steps are weakening the US, not strengthening it.
When the US was thriving, say 50s to 70s, they welcomed immigrants and invited them in to work in science and development. The middle class thrived because taxes were huge for the rich. That was the "Golden Days of the American Dream" (my words, I haven't read it anywhere, although someone else could have thought up the same phrase).
Now the US is being set up to have a tiny middle class. Not sure how similar it would be to Tsarist Russia, because the circumstances were very different.
Anyway, who would benefit from this is the other two superpowers: Russia and China.
Musk actually has some ties to China. The US is being set up to become the weakest superpower in the near future.