TwoSix
Everyone's literal second-favorite poster
One of the great things about D&D is that it's infinitely malleable. If you want to run a high level game (because really, most classes aren't a big problem at high levels in 5e) without high magic, it's fairly easy to do so. Then you don't have to worry about some of the complications that high level magic brings.If you just don't want to deal with high level magic don't run high level games. Every tool you need to deal with those magic exist in game as it's written. DM just needs to start thinking about big picture and how the PC's are hurting powerful interests with their actions.
No one is saying that high level magic is bad and you shouldn't play it. But high magic does bring a particular flavor to the game, and there's nothing wrong with wanting to run your own games with a different palate of flavors.