The Rights of Human Belief

I believe in the rights for humanity to believe whatever they want to believe unless they kill others for not believing what they believe if what they believe is something other than the prior belief of human rights, I wonder though... is it acceptible to kill the people that believe in killing for something else if you would be killing them for believing something else as well, even if that something else you believe is the belief in the rights for humanity to believe whatever they want to believe unless they kill others for not believing what they believe if what they believe is something other than the prior belief of our rights, and thus you are responding to the ones that dared to kill for something in offense, but in defense there is much offense, and who is to say the offenders aren't actually on the defensive?
What if the vast majority believes in the same something and if that something isn't the rights for humanity to believe whatever they want to believe unless they kill others for not believing what they believe if what they believe is something other than the prior belief of our rights, and they intend to eradicate everyone that doesn't believe what they believe both passively and forcibly?
Is it acceptible to convert to their something no matter how closed-minded and cruel that something is, after all, your belief in the rights for humanity to believe whatever they want to believe unless they kill others for not believing what they believe if what they believe is something other than the prior belief of our rights is a something else belief relative to the majority, and to act out against the majority may not seem acceptable, because if this were an arguement pertaining to how to prevent harm you would take their side and not even defend what is right and true, it is neccesary to defend the truth regardless of who does or doesn't believe you, even though you would be viewed by the majority as an offender, you are actually a defender of the truth and the rights for them to be freed from their uninquisitive conformist habbits through the rights for humanity to believe whatever they want to believe unless they kill others for not believing what they believe if what they believe is something other than the prior belief of human rights, thus the truth is the founding condition neccesary for an ethical defense!