Any religion that is at odds with the interpretation of scientific facts, is too concerned with matters of the physical plane and not concerned enough with matters of truth, beauty, humility, and humanity.
Any religion that insists that all its tenants and teachings handed down from one generation to the next are literally true and that all other religions are false or incomplete, is not only indulging in hubris and intolerance, but is also likely the source of suffering somewhere in the world.
Any religion that glosses over questions and doubts with the answer, "all that is needed is more faith" lacks true answers despite whatever solace its believers may find.
Any religion that draws lines or assigns roles based on race, sex, or parentage, fails to see that the spirit transcends these.
Any religion that needs miracles to support the words of its prophets, is a religion whose God is capricious in whom he reveals his truth to.
Any religion that demands societal laws reflect and reinforce its own moral codes denies that free will is one of God's gifts.
Any religion that has leaders that are strident is a religion most likely led by hypocrites, whom even if they believe their own words, rarely follow them.
Any religion that labels being an apostate as one of its highest crimes is a religion that fears anything approaching true discussion, accommodation, or intellectual challenge.
Any religion that makes threats about what will befall its followers in the next life for deviating from dogma buys its followers' belief with fear.