I'm also another one who would be grateful if notes and notebooks could be encrypted.
I think Apple's new Advanced Data Protection is a worthy contender. It includes end-to-end encrypting all your Apple Notes among other things. They already had individual note encryption, but this is general to all notes.
Apple Notes has an import feature for Evernote, but of course it's not great. Evernote still has some unique awesome features that can't yet be imported (in my experience). Maybe use both.