But wait, some of those Trump supporters voted for Obama given his huge victory TWICE, so does that make Obama's supporters deplorable too

You lefties are so blinded by your hate, you become what you hate
They got scammed and fooled. However if they are still to this day Trump supporters, then yes they are deplorable. If they have abandoned support of Trump then they are just scammed fools.
I will also point out that Democrat supporters that have never supported Trump can be deplorable for an infinite number of reasons. Republicans that have never supported Trump can be deplorable in the same way.
However ALL Trump supporters regardless of their background are deplorable because they continue to support him given all the data provided to them.
You consistently try to frame the narrative and the world and the people in it into simple binary choices. Of course the world and it's people are far more complicated than you present.
I'm curious is this because of a lack of cognitive capacity on your part that you can't handle more than two outcomes at a time or is it to rationalize a narrative you have decided upfront? Or some other reason?