I am forced to keep proprietary firmware in my OS to use the hardware and that’s what you are advocating for. You want everyone to be forced to do that. But I don’t want anything proprietary in my system. I see no reason why I should have a proprietary firmware package installed for my GPU to work. The firmware could be just on the device itself and if someone wants to change it, then they can install the package in their OS. But maybe there could also be some other way.
I think it’s important to have boundaries. If we keep our operating systems fully free, it will be harder for anyone to pressure us to add proprietary components to them. But if our OSes already contain non-free components, it’s not that hard to add more. We not only want freedom, we also want to keep it.
It also needs to be clear for the people in our community that our main goal is freedom and getting rid of proprietary software. Convenience is less important.