Well, from some of the orthodox Jewish people I used to chill with first year university, alot of them didn't believe catholicism was monotheistic because of the "father, son, holy Ghost"
I have also taken christianity, and I have a few Bibles, I just haven't had time to study it properly.
But yes, your baptism does clear your original sin as far as I remember...
Muslims don't believe in original sin. Adam and Eve were equally responsible for what happened, and giving birth is a blessing because mothers are 3 times more entitled to respect and love from their children than the fathers.