Somewhere I have bookmarked a list of all the assumptions that go into the "classic" theorems of economics, written by a practising academic in the field. I’ll try and dig it out.
You seem to have missed my point. Either way, you are making a lot of assumptions. It's like "assume zero friction" vs "assume friction follows exactly this formula". In either case, your result is wrong if friction isn't exactly as you specify.
You seem to be assuming that I’m trying to put you down instead of contributing (hopefuly) interesting things to a mutually beneficial discussion. Online discourse in a nutshell sadly.