Possibly. If say Tesco, had a political policy of only buying (and offering for sale) goods produced from certain countries, or following certain criteria, then by continuing to do business with them, you are, implicitly, accepting their political decisions.
You don't have to. You can decide not to accept their political decisions and refuse to do business with them. or you could just shrug your shoulders and accept it, i.e. a not bothered attitude.
But this is from the consumers POV.
My original comment was that it is not good business practice to insist on your customers accepting your political decisions, unless those decisions are based on genuine concerns, like the health and welfare of the producers, an ethical policy.
If you only offer your consumers a limited range of goods, you are reducing your customer base, and that is not good business practice, unless you are presenting an ethical business model and targeting the ethically minded consumer.