When your backed by one if the richest teams in F1 and have all the best equipment, Vettel in my honest opinion has no real talent compared to all the drivers you listed. Hamilton, Button, Webber, or Raikkonen would all be dominating F1 if any of them had Vettel's team and car.
1) Ferrari is the richest team in F1, not Red Bull. And they have Alonso.
2) You may be right about Vettel having no talent but I'm thinking he does based on what he has achieved so far in his career and what other drivers like Shumacher and Andretti say about him.
3) Interesting you mention Button & Webber in your list, both very average F1 drivers. Button only won a driving title by being in a truly dominating car with a double diffuser that no one else had. Webber was in the same car as Vettel yet could only manage 9 wins in how many years?
Vettel has become a polarizing figure because he is so good and is dominating the sport, thus a lot of people have either turned on him or just don't like what he has done. That's ok, human nature is to root for the underdog and he certainly isn't. But not liking someone and not respecting them are two different things. Like him or loathe him Vettel deserves the respect he's earned. That's my humble opinion.