[gavinlit]

"How presumptious of scientists to assume that their theories (and yes, evolution is still an unproven theory) are the only ones that matter and should be taught exclusively."
Yes, you're right. The school curriculum should be equally split between everyone's theories. Got a favourite theory (about anything)? No probs - we should be teaching it then huh. Ridiculous.

"Until strict evolution and origin of life has been irrefutably proven by scientists"
Theories in science are not proved, but rather supported with evidence/experimental findings OR disproved. As such you will have a long wait if you're going to hang out for a theory to be proved. By your argument, you could deny the existence of gravity (yet to be proved, but there's a substantial body of evidence supporting it).