Firstly, thats not how warranty work - if I add fins to my car that does not give you the right to void wrranty on the engine.
Secondly I vote to get laws passed that they make sure they can shove this policy. I've had enough of this corporate lawmaking and stockholm syndrome victims covering for them
>Then you can buy a different car from the other company that doesn't have this policy.
Which now also charges more fucking over consumers because they can and limits more in their favour because ...hey it's a duopoly. There's no pressure to make it a monopoly.
Also as someone else noted apples own actions show that this isn't how they do business given the opportunity.
You can even still hack the fins on your car despite the policy, but it might be difficult to do yourself and it'll void your warranty.