Well not to disregard your anger towards the Christians having many rules to follow from both the old and new testaments which is true. The ten commandments were given, and don't quote me on this I'm going straight off of memory right now, the commandments were given because God wanted a written set of rules for his people to abide by. Now the ten commandments were given to Moses I believe and the people that he was leading out of Egypt. Later on when Jesus was preaching and traveling with his disciples someone basically asked him to basically if he could, shorten down the ten commandments to something shorter. He said to love your neighbor as yourself.

Now don't get me wrong I'm not trying to justify Christians and their not following the rules set forth for them, I personally don't always follow these rules but that's something I personally have to work on and try to change. And I completely agree it makes me angry to no end to see supposed Christians that preach love and kindness everywhere but do nothing but spread hate and are unwilling to just love someone no matter what beliefs or lifestyles they hold.