If I was president, this is how I'd fix america?

[Cabal]

You could get your president elected by the people instead of by surrogates.

As for the rest, you are describing a nightmare.
Lack of infrastructure maintenance will mean more money needed later to repair the damages
Closing down all scientific research will make the US loose all the big brains as they leave for better shores in other countries. The US will also loose its proeminence in research, forever as the big brains won't want to come back, not knowing if you won't do it again.
Millions of people dying of hunger and of lack of medication.
Riots everywhere as desperate people try to find food or help, so you will need all the money you saved by closing down the bases to hire a bigger army to keep people quiet.
Tarif war with the rest of the world. American goods will be taxed to a fair thee well in other countries in retaliation.
Punish companies for hiring overseas foreigners? You will have companies changing their nationality, or splitting their foreign branches and making them in charge so they can claim their revenues abroad.
You will also get every single American company to loose the goodwill and help of the countries they have developped in, will get them in trouble with local laws, and will help destroy them.
Banks crashing as lenders take their money out of the American economy and people take their money out of the banks (you did study the bank run of the Black Friday, didn't you?).
There's not enough gold to cover the worth of all the US Dollars, printed money and stock exchange worth, so huge inflation as it will take $500 or $1000 to buy a gram of gold instead of $40.
If foreigners (legal ones) have no right to ask for welfare then it should be right that they don't pay taxes either, don't you think so?