"Why else would so many businesses overlook a completely free operating system"
Well, they don't. Plenty of businesses use Linux systems. It's not (only) because it's free, though. The issue of licensing often isn't a factor that comes into play over having a system that just works. It's easy to customize, flexible and comparatively secure. Your experiences with Linux are valid, but many businesses and individuals do use it daily and for good reason.
This is just nonsense. Linux servers are all over the place. Google has its own internal distribution of Ubuntu! I feel like you're not arguing in good faith, here.
Yeah, businesses that use Linux generally hire people who know how to use Linux. I don't think you actually know what you're arguing about anymore, but you can do it by yourself. Hope things get better for you in the future.
That's fair, but it's hard to not bring up servers when someone is making broad statements like "businesses don't use Linux", though. In the scope of that particular discussion I feel servers are pertinent enough.