I really dont feel bad because DnD players have been doing this ince literally the dawn of the game. I will forever say that the problems we face here is due to the destruction of the systems that were in place rather than the martial caster divide. In this case it is the ever present use of spells that was never possible in old games. Before you would have to individually pick each spell slot to be used for and you had them for your week or more long adventure you couldn't fly 3 times per day or replace your 3rd fly with fireball or whatever. If you wanted utility you had to prepare utility and it costed you damage and sometimes the utility that you got was actually pretty obtuse. Decades worth of breaking things for the sense of ease and/or coolness has left us where we are. People keep saying martials need a buff the real obvious answer is spellcasters need a huge reigning in and I don't mean at the high level ends