I sincerely don’t know to what degree Trump and his crew may change the US, and by the looks of other countries, it could be as extreme as silencing the opposition by force. Are there any efforts to protect dissent? Can this be planned for and successfully fought back before it becomes a problem? Do you have a different view entirely?
You better hope democratic led states resist his authoritarianism. If Democratic Governors orders state law enforcement to not help the federal agents, they only have limited manpower to do anything.
If trump does anything extreme like federalize the national guard to shoot dissidents, Democratic Governors might be able to delare those actions illegal and order the national guard to stand down. Hopefully the national guard would not listen to trump.
Red states are kinda fucked tho.
Edit: And I want to add that the US is not a unitary state, it has a federal system. States can still resist the autocrazation of the federal government, if they are willing to. Its not all doom and gloom.