It's a thickly-blue state, so most of the clientele probably agree with that sentiment.
Maybe "many" would be a better adjective. Not all
SHREW-CHILL voters are as loony as DU-denizens. My guess is that many
SHREW-CHILL voters' mental reaction to that sign was along the lines of, "Then you don't need my business, either."
Using the name "Trump" at
Starchucks was fashionable for a bit. That they call the police shows not only their lack of self-control, but their lack of understanding of the product they sell. They could have made the espresso 20-30 seconds before pouring the steamed milk into it, and over-steamed the milk by 5 or 10 degrees, and handed the customer a much less palatable than normal beverage. And the customer would have been none the wiser unless his expertise exceeded theirs.