Sorry Scooby, but even if all these fundamentalist groups stay in existence, I see no real advantage to it. We would certainly not be left with one point of view, by any means. Quite the opposite.
It would be more like getting rid of the thinking that the earth is flat, aliens live under the North Pole or that our futures are controlled by a benevolent troll who lives under a bridge on the Thames. Religious fundamentalism of any stripe is counter to growth and freedom of expression, because it can only exist by working against freedom of thought and speech. It's the fundamentalists who are trying to close down our research labs and water down our science education programs with their idiocy.
I hardly see how keeping them in existence is helping humankind and freedom of thought. Freedom for inept, inaccurate and outright false thought is hardly good for humanity. It's been one of its greatest enemies, and is the greatest threat to peace on earth right now.
I suggest you Goggle Sam Harris and read a few of his essays online.
S4