Most of those things exist in airline lounges.
"My dream airline would be one where I could be dropped off on the tarmack, hop on the next plane that is taking off (think bus stop) and be on my way. No getting there three hours in advance."
That exists. They're called charter flights.
"Still doesn't help that at the end of the day airports are typically not at your destination."
Charter flights for that, too. You can use smaller airports that are likely close to your destination.
So all those things already exist. It's just that they're really expensive. So really the dream is to have first class lounges and charter flights available cheaply and for the masses. That's probably never going to happen, because such things really do cost a lot of money to run and because then there would be even less differentiation for the expensive tickets.