For most people, seeing is believing. The best advice that I can give on this is to just brush it off and keep on moving. Rejection is part of the process and you will hear a lot of it. The key is to take it and accept it for what it is (which is sheer opinion). After all, convincing is done in the doing.
If there is one thing in abundance in Detroit, it's saviors. From financiers to philanthropists to entrepreneurs, we have as many saviors as we do vacant lots. As a recovering participant in the "save Detroit" movement, let me tell you there is no one person, no one plan, no one answer for Detroit. And, more importantly Detroit doesn't need to be saved.