Just because you choose to ignore the externalities of your choices doesn't mean they no longer exist. It just means that you value your personal well being and comfort more than being informed about the results of your actions.

It's a poltical act to eat food that tastes good, in defiance of the activists who think that the food yiu find tasty is immoral and want to make it illegal for you to do so. Something is a poltical act if other people want you not to do it and want to enforce this through law, which you have no control over.

Sure, you can. But don't pretend that's not a political choice.