

The fact that perfectly capable PCs aren’t getting security updates is just part of it. Once Microsoft and other corporations can ensure that your computer is no longer completely controlled by the user (as the TPM ensures) they can start locking it down, first in the name of security, but then just like how some phones have apps that you can’t uninstall, or how printers force you to use name brand ink at a huge markup.
It would be fine if we lived in a utopia, but not fine when corporations have the power to require that you use one, or else you can’t use their services.