The question back is what harm is it to you that I attribute the creation of the universe to a giant spaghetti Monster? What harm is it to you that I attribute the vast unknowns of the ocean to Cthulhu?
The flaws you mention come from organization which I am very clearly distancing from. Faith can exist without religion and organization. Religion cannot exist without faith.
The sooner we decouple these two things the quicker we can move forward as a species IMHO