If he achieves just a fraction of the economic promises, we'll see real unemployment decline. That reduces poverty and a host of social problems. Not a cure, but a better solution than responding to people with "shut up, you're racist if you're angry we're letting vets die and Americans are homeless while bringing in migrants who get free housing and healthcare".
Example - ending low skill immigration that depressed wages for the bottom 1/4 of native born workers helps poor Americans, while liberals say ignore the native born, help the poor foreigner, more so if they are here in violation of the law.
If we see political correctness as law repealed (federal contract laws requiring diversity mandates), much of the left wing fascism that says we can bully you if we don't like your word choice or hair style in the name of groups that may not even be present ... then the political divide will start to heal because you don't have liberal bullies enabled to police and browbeat (and increasingly physically beat) people up under cover of a "good, moral, educated, tolerant" liberalism.