Apple is different in this respect in that if you try to do something with the phone that you bought, whether it be repairing it against their wishes, jailbreaking it, or whatever, they'll sue you.
These matters have come up multiple times in the courts, and this is what Apple does.
The only reason why they aren't sueing customers today for jailbreaking is because they lost that court battle. But the intention is there.
I don't want them to have the ability to sue anyone ever for doing something to property that the customer already owns, because that's how property rights should work.
Other companies generally do not sue you for modifying hardware that you bought.
For the record, Apple has never sued anyone for jailbreaking. They did argue it should be illegal under copyright grounds, and lost that argument. If that's a dealbreaker for you, so be it.
Nobody can make the decision to buy a Chromecast or an Echo or a Nest or a Tesla without restrictions inherent to those devices. In what way is Apple special here?