You won't be able to switch it off for long. See how many phones still have that option! [1]

In the end what matters is always money. Always.

What brings more money? TiVo or buyer-owned device? You think 5% of technically competent potential buyers would make a difference when the 95% illiterate users will just replace the product no questions asked?

It started as a fight against piracy and half-competent users that break their own systems (and the company's systems too, like you said). But slowly the industry sees that there's more money to be made if the same technology can provide a belivable argument in right to repair and planned obsolescence court cases.

[1] https://github.com/melontini/bootloader-unlock-wall-of-shame