A redated post.
I think I am seeing people fall into some common confusions about objectivity, subjectivity, absolute truth, provability, and faith.
First, something can be absolutely true without it being provably true. Let's take the Jack the Ripper murders in England during the last century. There is an absolute truth about who committed those murders. There was an individual or group of individuals who killed those girls. However, we can't figure out who the perpetrator was. There are still books being written about it today to try to solve the murders. It's unprovable by us, and we probably never will know, yet there is someone who committed those murders.
With respect to the question of God, there have been attempts to prove that God exists and attempts to prove that God does not exist. I have studies these arguments, and I happen to think that neither side has such a stong case that every reasonable person ought to be convinced. However, there are reasons to believe and reasons to disbelieve, and I think that the claim that God does exist has stronger support than the claim that God does not exist. However, if we define God as an omnipotent, omniscient, and perfectly good being, then either God exists or God does not exist, and if God does exist, then the people that believe that God exists are correct, and the people that do not believe that God exists are mistaken. On the other hand, if God does not exist, then the people who believe that God does not exist are correct, and the people who believe that God does not exist are mistaken. The idea that if you truly believe in God, then God exists for you, but if you don't believe in God, God does not exist for you, is nonsense. God is not Tinkerbell, the fairy in Peter Pan who continues to exist so long as people believe in fairies.
With respect to religion, there are plenty of claims made by these religions which have to be either true or false, and about which it is possible to be correct or mistaken. (I like saying correct or mistaken better than saying right or wrong, simply because I don't want to make any moral judgments concerning the people, but I only want to talk about whether they believe, or fail to believe, the truth).
Judaism claims that there "The Lord your God, the Lord is one." So if atheism or polytheism is true, then Judaism is in error.
Christianity claims that Jesus was resurrected by God from the dead. He was either resurrected or he was not resurrected. Paul says if he wasn't resurrected, the Christians, of all people are most to be pitied.
Islam claims that Muhammad is the final prophet of Allah and that the revelation he presented is the final, perfect revelation of Allah. They've either got that right or they don't.
Hinduism says that we are all on a cycle of birth and rebirth, and that I am the reincarnation of a person who lived and died before I was born. I either was, or I wasn't.
Buddhism says my sufferings are caused by cravings, and if I stop craving, I will stop suffering. That is either true or false.
Atheists say that God does not exist. They either have that right, or they have it wrong.
Etc., Etc. Etc.
To believe that one's beliefs in the area of religion are true and those that contradict it are false is not to be dogmatic are intolerant. It is simply to understand what it is to have a belief. A belief is something you think to be true. And to believe that something is true is to believe that the contradictory is false. If I say "I believe in Christianity, but I don't believe that its claims are absolutely true" is not to be tolerant, it is to contradict oneself.
Faith is not belief in the absence of evidence, although perhaps it requires the absence of overwhelming evidence.
C. S. Lewis: I am not asking anyone to accept Christianity if his best reasoning tells him that the weight of evidence is against it. That is not the point at which faith comes in.