Because the carnal mind is enmity against God:
Romans 8:7
"Following criticism from atheists, a California science center has reportedly removed a disclaimer about
CuriOdyssey, a science and wildlife center in San Mateo, Calif., used language to let parents know that the subject of evolution would be discussed in “Animal Connections,” a live animal demonstration. A line on the poster read, “This program may discuss the topic of evolution.”
After noticing the disclaimer, Adam Rogers, an editor and writer at Wired, tweeted a picture of the sign, writing, “Apparently evolution is something they warn you about now, like smoke effects in the theater.”" TheBlaze
This is actually a good idea---WARNING labels about evolution.
See how the secular humanist responds when his origins myth of something-coming-from-nothing (literally) is challenged and treated as it ought to be treated....?