Generally speaking an "activist" is code for leftist(ie good)
"fundamentalist" means an evil rich white(most likely southerner)or someone with a 5th grade education, and has been brainwashed by the vrwc, and whats to turn the United States into a giant consentration camp.
Oh I almost forgot as we all know "fundamentalist" see family gatherings as a great place to meet chicks.
That sounds about right.