Trump didn't cause troubles so much as exploit them. Here are some long-term trends that I don't see going away:

slow, constant loss of real income among lower-status families
fatherlessness
lack of scientific knowledge
lack of experience in the real world versus digital products
increasing lack of knowledge of how to raise children.
substance abuse, which increases anger, costs precious money, and
    impedes intelligent thought

All these things lead to a large body of people who are looking for a savior - a daddy- a superman - to change their lives.

When Trump finally wanted the rioters to go home, he said "We love you," two times. Why? Because he was their daddy.