Beware of black and white, this-or-that arguments - e.g. “you’re either a conservative or a liberal,” etc. There is almost always a third way - and usually a fourth, fifth, or sixth way. The third way usually involves critical thinking, and a rejection of group think (i.e. the prevailing ideologies of the day). This is true of politics, religion, and everything else people like to draw lines in the sand over.
People who are given a narrow form of faith in childhood, are the most likely to loose their faith in adulthood. Once they have left the protective confines of home and are exposed to the broader world with all its ambiguities and unknowns, a faith based on having all the right answers becomes untenable for them. They’ve been set up to fail. Black and white faith is very fragile in a world full of shades of gray. That’s why people who hold such a faith have to work so hard at not listening to any other point of view. Their beliefs are so fragile that any wandering thought could potentially collapse the entire system.
Our faith cannot be in ourselves. It cannot be in our ability to be righteous. It cannot be in our ability to know all the answers. A human based faith is pathetically weak and will let you down sooner or later. The only faith that makes sense is that based on God. He is the only one that is truly righteous. He is the only one that truly has the answers. And we are not him. Faith based on anything but God is idolatrous...and idols are easily toppled.