There's absolutely no reason why the company that still maintains backwards compatibility for Windows 9x software can't support hardware from 2015.
If there are software workarounds that can prolong the use of that hardware, even at the cost of performance, they should be liable (and maybe subsidized) to implement them.
Afaik it's mostly about TPM 2.0 and virtualization support.
If people are happy or stuck with their fully working machines, it should not be up to Microsoft to arbitrarily turn them into e-waste.
I do hope they do offer a practical path here, but I disagree that they should be able to be forced to do so.
Users who are happy with those machines can continue to use them as-agreed.
Spectre and meltdown, while academically intriguing, don't really matter in practice for consumer devices.
Every kernel I have booted has had mitigations=off.