You'd be amazed. Vettel has burned a lot of bridges and honked off a great many people.
So what, it's nothing compared to what Alonso did. Threatened to stitch up his own team in a paddy. People said he was finished when he went back to Renault. Yet he ended up at Ferrari and Mclaren are rumoured to be interested in him again.
Vettel has nothing to annoy any other team except win a lot. Teams are always interested in that kind of driver.
Exactly what bridges and to who do you think he burnt?
I think Vettel is massively over rated by driving a car much much faster than the rest but I know if he became available every team on the grid would be interested. I can't think of a team that would pass him up.