Lutheran faith as a reform?

In my PERSONAL opinion, lutheran faith was supposed to be progression of catholicism, but they seem to be way behing catholics now. Luther not only killed many Jews in the process of christianization to his new religion, but also created religion that has superiority complex (our religion is the best, you don't believe in Jesus you go to hell etc). But what's most arogant about this religion is that they can never hold an argument/discussion with you, but always say:"I don't know, but this is what the bible says". Really?