I've found that many of the best engineers are quite terrible at interacting with other human beings. What matters to me is only if they deliver. If the bottom line is met and the work is getting done and done well, then it doesn't matter to me if the engineers are complete assholes.

Feel free to drop me a pm of the engineer you are canning; I'd be happy to connect with him on LinkedIn.

Your note of "If you don't like working somewhere you should leave" doesn't really work. You have to stay at companies for a specific amount of time or you will end up with too many different positions on your resume and be unemployable. It is better to stay suffering even at a place you hate to build your resume. Leaving when things aren't going well, or allowing them to get to the point where you need to leave is bad advice.

I am living proof of this. I have worked at 8 different positions in the past 17 years. By all reasonable notions I should be employed at a Principal Engineer level. That said, I am unemployable. I am on unemployment and apply to the most reasonably suited positions I can ever week, for 5 months now. I have only been contacted back maybe 10 times in that entire period and made it to 1 in person interview.

If you want to have a job, don't leave, even if it sucks, even if all you coworkers tell you "you can easily get another job". When you have an offer in hand; then feel free to quit. Otherwise stay put and try not to cause trouble.