Trying to see both sides on the "to complain or not to complain" topic... I think it depends on whether you take a macro or a micro view. At a macro, zoomed out level, Disney World and so much about the modern world should be a source of awe to everyone, I think. The sheer scale of human collaboration and cooperation from a dizzying array of fields, the progress in science / technology / architecture / etc., the things that humans have been able to build in a relatively short amount of time. The hedonic treadmill blinds us to the amount of progress that humanity has made. If you went back 400 years and tried to explain the concept of a cruise ship, or a roller coaster, or a MagicBand, or modern day food distribution that allows for food festivals, they'd think you were insane or witch. I recall listening to a talk on interdependence where the speaker said to do an exercise wherein you look at one item in a room and think about how much had to happen for that one item to be there. The people who had to find the raw materials, the technology and inventory tracking systems to transport the raw materials, the factories to transform the raw materials, the work that went into building those factories, the scientists who had to figure out how to make said material in the first place, the inventory tracking and logistics of getting it to a store, the drivers to drive it there, etc. Then compound that by every item in the room - what seems mundane is really a sort of miracle of human progress and collaboration. The amount that Disney has spent and continues to spend to sustain operations, and the volume of work that goes into making it happen is staggering - again, in a big picture sense.
That said, a detail oriented "zoomed in" perspective is important too. If my supervisor says that I'm late turning in a report, I can't scoff and say "What?! That is such a first world problem. Do you realize that people are starving to death in the world? And you're talking to me about red tape paperwork? Have some perspective!" We make progress at large scales because we nag and criticize and micromanage each other a bit so that systems keep functioning the way they should, and are able to grow and progress over time. We don't let our houses get (too) filthy or in a state of disrepair, or only pay most but not all of our bills, or skip just a few of the deadlines that we don't like. In real life, details matter a lot. I think it's a matter of finding balance in not dismissing day-to-day issues, and also taking the time to step back and appreciate things at a larger scale sometimes.