Roomate now on bodog...help me convince him online isn't rigged.

He saw me playing on pokerroom at the beginning of the year. He looked at my SSHE book that I told him to read, but rejected it when another person (strictly a NL player, mind you) told him that books were for tools. He now tells me that "all the money is in heads up matches" and he's "glad (he) didn't sign up for party poker because (he) heard from, like, 10 people that that site is juiced. Bodog is legit though dude." Give me a good argument so I can tell him why online poker is not rigged. He won't accept my arguments, mostly cause I dont have any facts to back them up. Just the basics, and thanks in advance.

And yes, I want to convince him it isn't rigged. I have to keep him in the circulation, no?