So... they're a software company? Specifically an OS vendor?
Seriously, how does your description imply anything unethical?
You can't even buy a device today that forces you to use MS. You can always install something else or hack your Windows installation however you want.
> You can't even buy a device today that forces you to use MS
That’s only because they lost that battle.
This is nonsense. Microsoft doesn't ship most hardware running Windows, and there was never a time any of it was locked to Windows.
I installed Linux on dozens of Windows machines starting in the 90s.
By your logic, all software is unethical if it's closed-source. Apple, Samsung, and every phone manufacturer actually do put effort into locking down their hardware, so you must think they're all far more evil than MS.