We just had the exact opposite for 8 years. A professional politician. The results were disastrous. The weakest GDP growth in history for any president. 94 million Americans out of the labor force. Record number of Americans on food stamps.
And you're worried about somebody not having held public office? That is exactly what we need. The rise of the professional politician is a disease. They are partisan hacks who never have to compromise and don't know how to because they don't have real world experience.
So I would say its you who are worried, in fact scared to a point of hysteria as evidenced by your irrational opposition to trump because he never held public office. Stop clutching at straws.