You can't please everyone. The current version of D&D and it's version of fighters seems to please millions.
I probably will stop pointing this out eventually, so persistence could pay off, but that is still the same informal fallacy it was all the other times you've said it, and it will continue to be so.
I mean, if you were a Hasbro suit at a board meeting, heckling a game designer giving a power point presentation about Ways to Make D&D Better, it'd be spot-on, popularity equals revenue which is the only thing that matters.

But, we're drooling fanboys, not Hasbro suits, here. We'll carry on analyzing what the fighter is.
Broken is a bit of a loaded term.
It's loaded with facts about D&D.

Seriously, tho, broken might imply that the game is non-functional, and D&D is generally non-functional only if the DM doesn't deign to make rulings, and why would you DM if you didn't want to make rulings? It's just... why would you not? It's like being a bee and not bee-ing.

(OK, that wasn't serious either...)
Like, this thread is not about broken, it's about the game functioning as intended: as a celebration of caster supremacy.

No, wait, sorry, seriously, again...
...now...
OK,

for real.
Broken is not the right term for the way 5e arguably may roughly aim to balance fighters' overall DPR with wizards' overall DPR over the course of a 6-8 med-hard encounter/2-3 short rest adventuring day (or, arguably, 3-4 deadlyx1-2 encounter/2-3 short rest day).
Balanced isn't the right word for it, either...
... "Bad," honestly, tho a bit non-specific, seems to apply, IMHO, FWIW (which is nothing).
The real problem is that while the combat pillar is well defined, the other two really are not. DMs are left too much on their own and because casters have so many levers it's easy for DMs to make it easier for the casters.
That is
a real problem with D&D, and not just 5e, either.
D&D has rarely done much with out of combat
challenges - utility spells, roll a d6 to search for secret doors, theif 'special' abilities, single skill checks from an expert. Spells kinda do stand out as by far the most numerous and powerful out of combat options.
It's a long-standing and valid criticism.