So if he literally stood in the middle of 5th Avenue and shot somebody, it wouldn't negatively impact your opinion of him? I don't believe that.
Do you feel like you're betraying your own political values if you don't support anyone with the same political values, even if they're woefully corrupt and/or incompetent?
Well the likely chance Trump would go ever go out and shoot somebody is pretty much non-existant so it's really not worth even considering a scenerio like that, much less any analogy itself by which people bring up things like that.
Its making Trump out to be potentially something that's not factually true. It's more telling with those who ask certain types of questions like that as to the integrity and intent by which such questions are posed.
The political values I look for in a president isn't their personality quirks, disposition, or private opinions, but what that person actually does by way of national policy and action.
I like to vote for a person favoring a smaller less intrusive, less regulating government, proper fiscal policy that operates within the country's means, a strong national defense against foriegn aggression, a healthy domestic policy that primarily revolves around capitalism, and respecting individual state rights with little or no federal interference as warranted allowing state's to largely decide for themselves as to what social and health issues to implement for people living in each state respectively.