I don't think it is pointless at all, but rather interesting to see what people believe in. However, I agree that we shouldn't downsize or speak ill of any other religion or practice. Everything in this world is uncertain. So to bring another Religion down and push your own opinions on someone else is unnecessary.
To be honest I believe in God, but I don't have a religion because I don't believe in religion. I don't believe that any religion has any more moral rights than the other. I do practice Buddhism. I don't consider it to be a religion because Buddha never intended it to be one. As for Shamanism I can't really critique it or anything because I don't have in depth knowledge on it. Christianity, I don't have anything against the religion at all. I do feel pressured by the society around me to believe in Christianity and practice it. It is probably just because the people I live around are strong believers so they try to push their beliefs on me. From my perspective, I wouldn't have a religion. I don't like the idea of "Regardless of what you do pray to god and he will forgive you." I don't like the idea of being forgiven for committing sins such as murdering someone, raping someone, robbing someone. I believe that for sinful acts that are committed against others should be paid for through karma. I believe that even if we realize what we did was wrong we should face punishment with acceptance in order for true forgiveness. I don't know if that is what they really teach you in church to just pray for forgiveness, but from my experience people who tried to convert me have all said it this way. What if someone commits a murder and apologize and say they are sorry every time? Should they really be forgiven repeatedly even if they are really sorry every time? Consequences are an important part of humanity
I also have come across people who told me I will be going to hell because I don't have a religion. I thought this was hypocritical. I felt offended so I told the person, "Would god really condone what you are doing? Would god allow you to condemn one of his children to hell just because they don't have a religion? Is believing in god not enough? Why must we have to have a religion? I believe that god wants us to be god for our own self worth and moral values. I don't believe that good wants us to be god in exchange for a place in heaven."