Yes, I understand why they're angry. That said, Trump doesn't help them with what they're angry at. Also,
None of those things are the fault of immigrants, POWs, persons with intellectual disabilities, gold star families, or women who would prefer that their sexual organs not be grabbed without permission, so no.
I love how the rest of America is expected to have empathy for the Trumpists, but the Trumpists are never expected to even try to empathize with anyone else.
Black people, women, LGBT people, immigrants, non-Christians, etc, are all just saying, "We want a seat at the table."
White Trump voters are saying, "We're entitled to be at the head of the table for no reason other than being white Christians. And if we can't be at the head of the table and be able to arbitrarily deny others the right to sit at it, we'll just flip the table over and set it on fire."
