Scientism is an Amoral religion. Motives mean nothing (embryonic stem cells, morning after pill is only birth control, viewing pornography doesn't perpetuate the destruction of young ladies and their future children's lives, the Drug Wars are a joke...). Why else would they willingly associate with these groups despite the science not being definitive.
Materialistic Relativism (There is no standard for morals so you believe whatever you want to believe) and Secular Humanism (a non-religiously based philosophy promoting humanity as the measure of all things) are two sides of the same coin.
Meaning, of course, that science does not attribute ongoing events to the interventions of God. Neither does science blame God for hurricanes and earthquakes or disease.
If, however, ID gets into the classroom, it will be taught that the anonymous designer -- space aliens or whatever -- has designed diseases, parasites, predators and other nasties.
If you like the way public schools teach sex education, you will love the way they teach ID.