This is not about saying "we don't serve your kind here".
Yes, it is.
This is about establishing guidelines for government to avoid reflexively punishing religious individuals over their scruples of conscience.
No, it isn't. There was an amendment offered by the Democrats that specifically added non-discrimination language to the bill. It was shot down.
The Christian would be a jerk in that case. So why are so many gays being jerks about the exact same kind of thing?
Congratulations, you're an idiot. There's a difference between refusing to serve someone because they're asking for a product you don't sell and refusing to serve them because they're Christian, or Muslim, or black, or gay.