IMO you have way over estimated how much the experience of Trump’s business career indicates what he can do to the economy. He started very wealthy, has had a lot of failures, and used bankruptcy four times to escape damages...and his biggest business of all was a reality TV show. Not exactly Apple or GM is it.
You're also understating what a business executive has to do, and what he's accomplished. In that regard, I thought you'd know better. Your own personal business experience should have guided you more.
I get it, you don't like him. There are parts of him I don't like either, but it's not preventing me from seeing his strengths. It's still his to win or lose, and quite honestly, Rubio may be the only contender that could knock him off, not Cruz. Rubio is the last man standing from the cheap labor express, and is going to get muchos dinero from the donors now.