I know I can use /ncr at the end, but I'd rather not have to do that all the time, and I think you can't even make that the default search for the Omnibox in Chrome, which means I have to give up Omnibox, which I love using, in order to get away from personalization. And even then, I think it just means I won't see my country specific results, but it probably still personalizes my search results through other types of signals.
So fine, don't make universal search the default way to search, but just give me a checkbox so I can turn it on when I want to. I want to see the best results, period - not the best results for me (or whatever Google thinks are the best results for me).