If you think western civilization started 1800 years ago, you need to go back to history class.
As for your further hysterical rantings, please try and make a coherent sentence out of what you posted and I will try to reply.
Why does any particular sect reqire "equal time"?
Well, gee, how about: I pay taxes too and want a voice in how my money is spent.
Or: I want that only my brand of religion be taught (and it isn't the same as yours).
Or, maybe: I don't want my children exposed to your religious idiocy and advocacy before they learn to think for themselves.
Or, even: Satan deserves equal time.
Or, how about: Keep all mythology out of science class.
Feel free to pick any two.