The bad that has happened can be undone just as it was done.
Did you notice how quickly Trump closed the border? Less than 6 months.
The BIG Bad we face is growing national debt and inability to pay obligations such as social security and medicare without further increasing the debt.
Solution?
1) We must grow the economy so the debt is a smaller percentage of the total.
2) We must not create any new PONZI schemes... and that is exactly what Social Security and Medicare are...PONZI schemes.
3) We must not extend the current PONZI schemes to immigrants...to new constituencies.
4) Do we cut benefits to those already in the PONZI scheme?
5) How much of WASTE, FRAUD, ABUSE and non-WFA programs can we cut to avoid an impossible total debt?