If Apple announced they were going to do that, within seconds, Trump would say the tariff is 50%. Then 100%. Then 1000%.
We are dealing with a madman- who on top of being a narcissist sociopath, is an absolute moron. He is far too stupid and egotistical to ever admit, or even know how stupid he actually is.
Of course, all of this could be stopped by Congress, but we have a Republican majority that is petrified of this absolutely insane person.
Overall, this only ends two ways: 1) The Republican caucus finds its spine and other body parts and removes him from office via impeachment or the 25th Amendment; or 2) a Big Mac send from Heaven does its job.
There is a third way: Apple sues and this gets blocked by a judge and remains in legal limbo until either of the choices above happen.