This is not about your opinion, this is a fitness fact. Strenght training in MMA is functional strength training. Bodybuilders are completely useless. They can't even wipe their own ass. Their muscles are so large that they have no flexibility, speed, or balance. So no, you cant teach a bodybuilder how to do a proper takedown because his body won't allow the mechanics that are involved. Furthermore he would get too gassed from the exertion. Bodybuilders can't even walk a flight of stairs without breaking into a sweat and breathing heavily.
If you trained a bodybuilder for a month and he was able to pull it off, guess what that means? He lost a lot of muscle which enabled him to do that which also means he's not a bodybuilder anymore.