There has never been a successful multiracial democracy in history. There are many books on this - one was even on Obamas summer reading list awhile back.
> The real problem is that people are not making living wages and wages are not catching up to cost of living
Importing labor devalues native labor. This is outside of the cultural change, etc. These are real problems.
> They'd rather not solve immigration
Because they serve the rich and the rich benefit from immigration at the expense of natives. Immigration is a solved problem. Do it only when needed or when it benefits the people, not a select few.