Interesting take, never thought of this that way but it seems really realistic the way you put it ! That is already happening with mail where the big mail servers start to “defederate” by straight up denying mail from servers they do not recognize. Maybe the day will come where web servers will just send data to recognized browser (already kind of happening)

But what frighten me is hardware discrimination. In the name of security, I think we may soon come to the point where some servers will discriminate against “non-verified hardware”.