You said "we need to get them to work". Panhandling takes much less effort than working in the fields.When did I say that was a federal crime or what makes you think a EO can make it one?
It is however, already illegal in most states, including California: § 647(c) PC - Is Panhandling Illegal in California?
Unfortuately, a lot of Dem rule states don't enforce the laws.
It's kind of like drugs being illegal; hard to enforce.