My phones and laptops are small enough and lightweight enough.
Making them bulletproof is too expensive. But making them easier to fix, documenting the process and authorizing repair shops would do be great.
PS: I don't need to be able to hot-swap parts.
PPS: pro models from Dell and HP at least are often quite easy to disassemble and fix and I think you can often source parts from eBay for years after you buy them.