I accept that changing traditions will not start by being disrespectful towards them but by starting a dialogue including those that are subject to segregation. I also understand that religions have customs people are expected to abide by when getting in contact with. I´ll gladly make away with all religions, but as even the civilized world seems to be far from accomplishing that i see no issue with respecting them.
Spitting on them will help nothing but alienating yourself from the people who follow those traditions and cultures, not very civilized of yourself.