If the shoe fits wear it...
Well Cobbler, your attitude on this is an attitude that loses elections.
Last year, Hillary Clinton made a comment about Trump supporters being a "basket of deplorables". Hillary supporters (including me at first) cheered, not realizing that this comment (and the attitude that it expressed so clearly) would lose the election.
A little while later, I went to the Topsfield fair in Massachusetts. They had several stands selling t-shirts celebrating "I am a deplorable!". Trump supporters loved this t-shirt! Hillary gave them something to rally around. I still see people wearing shirts with some version of the phrase "Deplorable and Proud".
That is the thing... the shoe fit, and they wore it proudly. You define a large proporrtion of the American electorate as "deplorable", then deplorables all of a sudden become powerful and trendy.
Once you label people as racist or sexist, you lose any chance of gaining their support, even on areas of mutual interest.
And that is why Trump is in the White House.