In my business, I deal with all types. So long as they pay their bills on time, I'm just happy to have their business.
Think of the 9-11 hijackers and their flight lessons.
I am NOT comparing your situation to that extreme example.
But I think it does show that there are lines that have to be drawn.
I have made it a point in recent years not to patronize businesses that I know are passionately supportive of leftist causes.
I take the business of and do business with many with whom I disagree...but if the obvious intention of their political bent is to stop ranchers, farmers, coal miners, oil men, outfitters and so on---these are my customer base---then I try to avoid them if at all possible.
But that is his averred basis for turning down the business - people who proclaim Bernie affiliation have stiffed his business for the bill, and done so frequently.
And therein lay the rub - he stated in the article that his experience with socialists led him to expect her to not pay the bil.
I think of it as a choice. Either way has upside and downside. One of the great benefits of being a business owner is the ability to fire clients.
It might be good for business, who knows...it might be bad. Those are the calls you make as a business owner.