That said, her meaning was not "Trump Supporter"->"irredeemable", it was "racist, sexist, homophobic, xenophobic, Islamaphobic"->"irredeemable".
It's weird to claim "irredeemable" as a badge if you aren't also claiming one of those other things as a badge.
Although you would think more would realize by now "The Race Card is Maxed Out": http://www.cc.com/video-clips/m0pvy5/the-daily-show-with-jon...
To take the best personal example I have, in my lifetime, since I became politically and socially aware in the very early '70s, "racist" meant something, something effectively concrete, something real and observable. Now can mean something as anodyne as disagreeing with an opinion or position of Obama's.
This is not an accurate understanding.
But it is a useful point for the conversation to reach. If you are not willing to evaluate the accuracy of that belief, you also won't give consideration to other arguments that contradict it.