You seem to be confusing the concept of God with bad religion? I know may theists who are intelligent and yet shun organized religion.. and only because how organized religions treat other human beings who disagree.
I also know some catholics that are actually not a problem and very intelligent, it depends on how people execute their faith and to what degree. I know some who are willing to say they may indeed be wrong, those are the tolerant ones I speak of.
I never said anything about the "concept of God" vs bad religion. If someone simply believes in God and doesn't subscribe to any violent religion then he or she is not the topic of discussion here. Religions such as Jainism that are inherently non-violent are not in this discussion. I'm referring, particularly to true Muslims, true Christians, and true Catholics, and true Mormons. If you describe yourself as one of those listed faiths and you don't strictly follow your holy book you are not truly practicing those religions. That's called "cherry-picking".
I'm speaking to any religion that will forcefully push their ideas on other people regardless of if they want it or not. I'm not referring to simple deists.