Can someone please explain where, the people who purport to represent conservative values feel, trans-gendered men/women should use the toilet in a given public or private establishment? 

The point being made in the article, even by the bill's drafter, was that they wanted to codify what happens naturally as it is. It only becomes a civil rights issue when some zealot cries foul because misty, turns out to be a boy and suddenly a proprietor/citizen doesn't want them around their 'family' or 'family business' out of pure bigotry. 

The fact is you probably have no idea who among you is trans-gendered 90% of the time. And those same people walking among you need protection from that kind of discrimination because it is a basic right for them to be able to live their life as they see fit (see also: life, liberty and pursuit of happiness).  These are not things that can or should be left up to popular vote.