You obviously read too much NY Times or watch too much PMSNBC.
I don't laugh at you fearing for the country, I just SMH at how you're about 15 years too late to start worrying. nObama's 2 terms probably inflicted enough of a fatal wound in this country that historians will detail when they write about the demise of the USA. One short term by DJT wasn't enough, and now nObama's 3rd term with the senile puppet at the top will seal the deal.
I would think the fact that over 9 million illegals have crossed into our country might be cause for your concern vs. another DJT term, but I don't think you can grasp how many people that actually is. France let in 7 million immigrants and they have proceeded to create pockets around smaller cities that the police are afraid to go into.
They don't GAS about France's culture, language, history or people... their goal is to create a Muslim state by any means possible and one day take over the entire country. If you don't think the population of 6 Western States that have come into our country can't coalesce into faction similar to the (admittedly) mistake France made, then you're kidding yourself.
Add to this a galactic deficit that is will implode like that deep sea sub did, and your fears will be realized, but it won't be because of DJT. Just another note, the SCOTUS is only as strong as the people who obey their decisions, and we've seen plenty from the dems who want to add 4 more so they can sidestep any conservative judges.
Bottom line? We're all screwed... not if, but when is the unknown.