Why Do Wercinski Supporters Behave So Badly?

This is a screen grab from a comment made by a supporter of Sam Wercinski. This person claims the Arizona Republic endorsed Rep. Chris Deschene for Secretary of State because he's a Native American. "MaryVale" is a bitter bigot. Shamefully, I came across other Democrats who still were captured by racism when I worked for the Obama campaign.

Here's my question; when will Sam Wercinski make it clear he does not share the same narrow-minded view of Rep. Deschene?