Christian theology dictates that God is all loving and all powerful.
Using even a modicum of logic, statements like these directly contrast with the most basic tenets of Christianity. Going by Huckabee's (and others') words, either...
1) God is omnipotent, but remains vengeful. That is, he kills children out of spite.
2) God is loving, but ultimately toothless. His power ceases to exist because we decided to "remove" him from schools.