If we don't watch it, our descendants will have to communicate opposition to this religion of peace in such subtle ways. We should work on and teach to our kids how to write good allegory. Islamists want to beat us and our kids into submission with sheer numbers.
AntiChristians have already taken the Jesus fish (which is not a "creationist" symbol) and parodied it by adding feet and the name "Darwin". Others have taken the concept and made it more squid-like and put in the name Chuthulu.
The Jesus fish does not need His name to have meaning. The others do (and I find them to be antiChristian).