Christianity/Catholicism? Don't you mean just Roman Catholicism? As you can have Christianity without the Roman Catholicism. When I was researching faith and religion, I was able to rule out Roman Catholicism. I know what you mean about self contradictory BS (things such as purgatory being unbiblical, perpetual virginity of mary despite Matthew's gospel strongly implying that she consummated her marriage and the Bible mentioning Jesus' brothers several times, etc). As with preaching and action - I care more about the faith and my own spirituality than letting myself be defined by what others are doing. Of course, I'll always call people out when they are being heretical and/or abusive or misusing the faith (I remember there was an Indian guy who claimed to have converted to Christianity but I later realised he did it because he hated Muslims so much, and he ended up actually dropping his identity as a "Christian" because I kept telling him that Christians cannot call for a mass extermination of a religious group. Pretty funny but also a sad story), but I wouldn't stop being a Christian just because other Christians are being hypocrites. Why should I let them take what Jesus did for me away from me?