No he is not at all what the establishment wants. They want Tim Scott or Marco Rubio who are tied in with the war machine. Vance is not an establishment guy at all. He hardly dislikes Midwesterners considering he is one.
I guess you are very young. He wrote a book trashing midwesterners as poor benighted folk, and he was feted by the jet set crowd for it. He said Trump is the American Hitler.
In the last moth he has defended abortion and minimum wage. He is the ultimate insider/establishment.