Exactly, it's not about complex definitions. I've seen Kiyosaki speak live. He's a no BS kinda dude. When you say "anarchist" he isn't thinking "Well, let's check the dictionary."
Like most people, he's thinking of gun-toting, black mask wearing rioters. Of course, he's not gonna agree to that image of himself.

1. It's not an accurate image of him
2. Most people don't use the dictionary - they use Google (if anything). And Google image search turns up images of people in a black masks throwing molotov cocktails.