Not everyone exchanged their BTC stash for BCH/BSV... some people kept both after the forks happened.
But why would they? Merely they're followers sold their Bitcoins for a forked-shitcoin that's forked from a forked-shitcoin. It proved how naive people can be. Plus by HODLing BSV, they are losing units in Bitcoin.
An off-chain layer for NFTs, with Bitcoin as the settlement layer, will be actually be the most ideal conclusion for the "Ordinals Drama". It's going to be more efficient, cheaper for users, and developers could actually build "trading" apps using them because transaction throughput will be higher. Plus from a technological/development standpoint, building off-chain layers might be a learning experience for the developers, the actual users, and the general community.
There is something like this in the works - I think I mentioned it earlier in this thread - and it could explain the reduction in Ordinals-related activity. The inscription part will still have to take place on-chain but in theory the ordinals themselves can be moved around in some kind of off-chain, second-layer mechanism, akin to Lightning. But the main reason they are doing this isn't to help anyone out, its so they can pay less fees when making ordinals transactions. Win/win situation nevertheless.
Or merely stop using Ordinals, which is merely a system made up in Rodarmor's head, and use a more efficient system with better architecture, no? Because if users truly wanted to store and secure their dick pics in the blockchain, it's better to use Bitcoin Stamps.