Acceptance of the confederate flag has definitely decreased a lot the last half century.

So if that's your measure, white supremacy is not doing well at all.

Strawman, but no, it isn't my only measure.

Many people experience legitimate problems in life to which the've only been offered solutions like xenophobia.

Which problem is xenophobia a solution for?

I didn't say it was a good solution or one I would ever offer myself, but I think a lot of the young-white-male-to-alt-right pipeline falls in to this when nobody else seems willing to hear them out except to tell them which ethnic group to blame.