The AoC was also set up at a time when the US was 13 states totaling about 2 million people. And it still failed.
Also, I tend to think that states' rights is a concept that a person needs to be very careful with. It was just a few decades ago that we needed to send the National Guard into Alabama and Mississippi because they refused to recognize federal law with regards to segregation. Then I imagine the same scenario with regards to abortion rights, religion, social welfare and gun laws, and I can't see any good coming of this amendment.
The thing is, I seriously doubt he expects this to pass. Amending the constitution takes
a great deal of consensus, and I'm sure the distinguished gentleman is aware this consensus doesn't exist. No, what he's doing is sowing the seeds for a Senate takeover.