One way to make sense of "Crypto" is to think of it as a free-market testing ground for ideas about what can be done with cryptographic tokens. If there's an idea that looks like it could be of actual value to the world, after testing it with shitcoins, then there's a chance it will eventually be implemented on Bitcoin, where it can be used in the real world with actual money.

To provide firmer grounding for your preference to stick with Bitcoin over Crypto, I suggest the insightful essays by Allen Farrington and Anders Larson, Only the Strong Survive, and then the follow-up on DeFi, Green Eggs and Ham: Decentralized Finance — The Good, The Bad, and The Ugly.