If you bought the product, the money went to the company. You don't need to take personal responsibility beyond that, and the company isn't doing the thing you hate so much. By the same token that "some of your money might end up (after many twists and turns) empowering politics you find repugnant", a much bigger share of this money is paying for the food on the table of the employees, their families and their children.
How many people unrelated with your personal gripe, people that were doing a good job since you were paying and satisfied customer, are you willing to punish in order to "send a message"?
This is an impossible standard to live by and demand from everything you buy and every service you pay for. Doubly so if you need to announce to the world you're dropping a product because of something that isn't done by or responsibility of its employees.
How many people unrelated with your personal gripe, people that were doing a good job since you were paying and satisfied customer, are you willing to punish in order to "send a message"?
This is an impossible standard to live by and demand from everything you buy and every service you pay for. Doubly so if you need to announce to the world you're dropping a product because of something that isn't done by or responsibility of its employees.