Well, both, really.

Make sure they know you won’t be buying their process anymore because of these policies.

or both

Yes, but also make it clear why you are leaving. And as dirty as it feels, don't tell them their actions are irredeemable and they've lost you for life.

If you tell them you'll never come back no matter what, then they no longer have to care about your opinion. You're essentially telling them that they should start catering more-heavily to the fascists now that the only potential customers don't mind them bending the knee.

If you are still using an apple phone in times like these then you are not taking your life serious enough. Big techs power will absolutely fuck things up in the coming series of purges in the US and people are totally unprepared for it.

They had no problem standing up to the FBI when they knew the Constitution still worked. It's not bravery when it doesn't cost you anything and there's nothing to be afraid of. But now things are different and regular every day people don't want to say it out. The implications make them uncomfortable.

Apple's market share outside of the US is pretty pitiful. Even with their piles of money, it would hurt.

It would be better for the economy to commit suicide than to comply, and we as consumers have the power to make them if only we organized