Cameras off is a drain for collaboration. Frankly, I think your productivity would benefit from RTO. Professionalism does help in collaboration.
I don’t need faces, unless I’m interrogating somebody.
In all seriousness: you've outlined what you need. Perhaps you should reflect on what any collaborator needs.
It's a job. Not a confessional booth.
I will not convince you, but there are a lot of people like me, who can operate productively without observing faces.