"...One wife is the expectation for all..." Should be:
...One wife is the expectation for all... elders.
How you get all 'people' out of that is a mystery. lol!
"How do you respond to a "christian" ( note the quotes ) who says he is exempt from the Timothy instruction because he isn't interested in being an Elder, Minister or Deacon?"
The answer is, first lose the scare quotes around the word Christian as it's a gratuitous cheap shot.
And secondly, and perhaps more painful for some, the answer is that there is NO prohibition against polgyamy for those who don't want to be an elder or deacon.