Why don't us christians try to...?

If Christians, Jews, Muslims, etc. have all the answers, why on earth would you argue in the first place? I thought that all you needed to do was to present your faith and let people decide yes or no based on their own convictions and or degree of belief. Why do you want to argue who is right or wrong? Surely these things will come out in the wash regardless of what we do or think. Oh and by the way thanks for the prayer, but ponder this..........who decides who is lost or found? What person on this planet has the right to judge the condition of another? What standard do all you religious ones follow? If you're going to talk the talk, you'd better be able to walk the walk, if not then don't open your pie holes in the first place. We'd all be better off with less arguing and more tolerance. Also to all you atheists out there the same thing applies........you can't force people to believe as you do so why try? Lastly remember what Lucifer said when he was cast out from heaven"I would rather rule in hell than serve in heaven". And that quite sums up how I feel on this whole tiresome subject.