You are making this up as you go. Politically, almost no one opposing minimum wage is directly impacted at all. That is where the primary focus of this conversation sits.
You mean that almost no politicians opposing it are directly impacted? That's a bit of an odd one - it doesn't make their position any better if they're playing to constituents or donors who are.
Also, direct benefits is not a bar. Anyone can and will quote facts that favor their position. They are still facts. Environmental studies are not wrong because an oil company funded the study. Climate change studies are not wrong because they are funded by NASA.
Yes, but it's rare indeed for all facts to line up behind a particular position. We might justly wonder, when an oil company gives us 'facts' which suggest that climate change isn't happening, whether there are more pertinent facts out there. Incidentally, particularly bad example, given the many techniques by which oil companies and the like regularly do fund studies with the precise purpose of misinforming people! We had an interesting thread on some of the mechanics of it a while ago; I seem to remember Mise was quite involved.