It is the same with the "theories" (WTF???) of evolution and IMHO the duty of the government to offer open, proper, modern and beneficial education (based on recent scientific facts) to its citizens should clearly overrule this wish for individual and religious preferences.

"Intelligent" design, creationism and any other religious believes should have nothing to do with governmental education just as much as governmental education should offer the best possible sex ed. If you do not want any of this, opt out of the governmental school system and follow whatever cult and/or religious doctrine you prefer... but this has to be clearly separated from the open education offered by your government to everybody.

Unless, of course, your government is a theocracy.