It’s wild that you’re saying it’s a fad when the impediments to it are cost, flavor, and texture, all of which have been improving at breakneck pace over the last few years. Meanwhile the impediments to actual animal meat are things like: running out of arable land. Running out of water. Antibiotic resistance. Climate awareness. Animal welfare awareness. Etc, all becoming worse problems at similarly breakneck speeds.

I see these two trend lines and arrive at the opposite conclusion: animal meat is certainly on its way out.

Edit: Also, Beyond Meat is really not great, in my opinion. Impossible however is quite good! I really enjoy meat and one of the best burgers I've ever had (incl. beef burgers) was Impossible from now defunct NYC restaurant Saxon + Parole. If you haven't, I'd also recommend trying seitan. It's not new and flashy and doesn't really try to be mistaken for meat so much as just be a pretty good substitute for it. The nutrition profile on seitan is outrageously good and the price, texture, flavor are all very palatable these days, especially in the right dishes.