as Stabbey put it, its not about beeing able to cast one once, it sbaout haivng them at all.
It would be a lot of effort for osmething you bareley use.

And thats what i meant with muh high level play.
Muh high level wizard wank. It doestn matter thatn 13th level isnt the level cap of dnd.

The fact that you claim that 5e wizards are actually TOO WEAK not just proes my argument, but makes me think i havent been wording it strongly enaugh.
For one, no, nobdoy is comparing a wizad wit all the gold int he world with a fighter. We compare cahracters with equal ammount of money.
However, well also not just resort to the White empty room, we talk about day to day adventuring utility.

Which is the point where the wizard looks even more ridiculous in comparison, considering all the fighter will buy with that money is gonna be magic items that make him hit harder and magic armor thats gonna make him less likeley to be hit, problems the wizard doesnt even need to deal with, since he spends his money on utlity alone.

You are beeing disingenuous here.
And quite frankly, i dont think i need to reiterate that claiming that theres no disparity between casters and martials in 5e is ridiculous.
Extrodinary claims require extrodinary evidence, and so far youve not given any. And now, how much damage a level 20 fighter can do in one round is not an argument, its dodging the question since i am well aware of that, and you should be aware that htis is not the point.