> There is no constitutional right to incorporate

The Constitution directly grants very few individual rights. It’s mostly a document about what the government can’t do.

> Theoretically states could stop it at any time

Sure. That’s not “at the pleasure of.” Driver’s licenses are not issued “at the pleasure of” a state. Neither are marriage certificates. They’re issued as a matter of process that binds both the issuer and recipient to a predictable set of rules.