And then you have to deal with some case where you have to interop with something that uses a secure ciphersuite that your library doesn't support, and you bloc

And then you have to deal with some case where you have to interop with something that uses a secure ciphersuite that your library doesn't support, and you block hard on that. Yes, if you want a cryptography library for a greenfield project, then you want something tiny and simple and secure (e.g., libsodium). For other things you'll want a more complete library.