I'd probably respond, "and you just want to hire me and take most of the revenue, so it sure sounds like a job offer to me. What is the problem?"
Yes, you might be blowing the offer. But if they don't want to pay you what you feel is right, is that so bad?
I had a friend apply at my former work place. He was a brilliant programmer and a millionaire. He wanted a job to get immigration. So he said he would work for the minimum required to get immigration. My boss at the time was insulted that someone would offered to work for cheap. He didn't hire him and went on to ridicule the guy, assuming he would have been a bad hire. Little did he know the guys priorities were different due to money he had made offshore.
I'd say that is what is happening here. Some people can work with folks like that. I wasted to much time with those sorts. I'd rather not personally.