We have seen the current state of the trading card game market before. At least twice. After Magic released in 1993, 1994 and 1995 saw a huge number of trading card games hit the market. None of them are widely played today and players either buy extremely limited print runs that are one and done or play with digital cards. We saw a second run in the early 2000s with the success of Pokemon and Yu Gi Oh. Once again, no games from that era have survived to the current day.
The big difference between those runs and the current one is that people played those games. Most of the people buying current TCGs are looking at them at investments, rather than games. Wonders of the First, with its NFT versions of card is making the resalability of the cards a selling point. Unfortunately, the one time we ran a demo session of the game, no one showed up.
Buy TCGs if you want to play them, not as an investment vehicle.