Why is it more acceptable to believe in God and religion but not in UFOS?

There is no proof of a god, no pics, no footprints, no fingerprints but yet people feel it's okay to believe in him. In fact they see you as weird if you don't. However if you tell them you believe in Ufos they call you crazy. There are far more proof for Ufos than for a god. People who believe in Ufos actually present pictures and witness testimony some of which cannot be refuted. Religious people never offer anypoof.