That is perfectly fine. You are the customer and you can choose whom you will give your business to. My point is that companies should not be doing it because they instantly cut their potential customer base by half with every single act of activism they do. They should be focusing on business and nothing else. Politics, activism, whatever you want to call it, should be solely in the hands of the individual, not the corporations, whose sole purpose to exist is to do business with every possible customer they can in order to turn a profit.
Additionally, companies might be political in ways I might not care. It might be simply a non-factor when deciding whether I give them business or not. But the sheer fact they are politically active, so to speak, and don' focus solely on providing the best services for the best prices with the highest quality, is the red flag that instantly makes me wary of doing business with them in the first place.