I haven’t taken a leap of faith in my beliefs about Thor or Krsna, either, and neither have you. Unless God or another deity claims me as His own directly, I’m left appealing to my own instincts, feelings, and understanding of the world.
I understand and appreciate faith, but my definition of that word might be different than yours. To me, faith is an understanding that I’m part of a larger whole, that everything is interconnected, and that anything is possible.
However, faith in a particular religious tradition is exclusive, rather than inclusive. It is the belief that one deity is real, but also the belief that none of the other ones can possibly be real. Muslims, Jews, Buddhists, Zoroastrians, pagans-- many of them are as sure about their faiths as you are about yours. They will also tell me at some point I have to stop asking questions and just choose to believe.
I cannot take that step, because I cannot believe that God is encapsulated in a few hundred pages of human language, including the Bible. I cannot believe that God is exclusive-- that if you are lucky enough to grow up in a place where the Christian faith has taken hold, you have a fair chance at an eternal paradise, but if you are not, then you are likely to suffer eternally-- or that if you have had water sprinkled on your head as a baby, you are blessed, but if not, you are stuck with the original sin of Adam and Eve.
To me, the gravity placed on some of these rituals seems dangerous-- I’m worried it shows a willingness to believe in the mechanisms and superstitions of man, rather than on the all-pervasive truth of a living God, which surely must not require circumcision, eating cookies and calling it flesh, avoiding shellfish, working on certain days, and so on.