10/10 for J. Phoenix - but the rest is completely wrong

Rating: 2/10 (22 December 2019)

Joker as the character portrayed by Joaquin Phoenix was developed rather well. he is a great actor and once again his presence was awesome. No complaints there.
BUT!!! Joker starts out as a 40 year old dude in the movie and in the last scene at Arkham more like 50+ while Bruce Wayne is a 12 year old child at the same time.
Yet in every universe or interpretation of the DC universe Joker and Batman are arch enemies and they are roughly the same age. how does this not bother everyone watching this movie?? There is no DC universe timeline where this BS can work at all. the age gap is far too big and (to me) it is extremely disturbing. joker next to this is not an imbecile, loser turned murderer turned psychopath. Joker is a chemical engineering mastermind.
The movie was to be watched as a separate entity from ANY previous DC Batman story - which is absurd given Jokers obsession with Batman and then being enemies; but fine - this is a different Joker. But then when you can almost relate to the absurd idea that Joker is in a separate timeline or universe - the movie re-enacted the Wayne parents murder exactly the same way as every single Batman / Joker story; and Joker was in Arkham Asylum at the end also exactly like "it should be" . So it's not a different Joker and not a different universe?!?! but then back to my original point this plot makes no bloody sense (in terms of age - timeline).
besides this extreme major flaw - the interactions of Joker with the detectives and the complete inaction of the police after the initial murders and while he is on the TV show also makes no sense... The plot is basically infuriatingly full of holes; and weak as hell - it mixes original story elements with a complete misrepresentation of Joker.. Joaquin Phoenix carries this movie, no doubt - but if you ever read DC comics or watched any Batman interpretation - you must be at least questioning the logic. Joker literally appeared in the first Batman episode and sure there were some different representations; but this was a mix and match with no logic. Sorry for the spoilers, but the movie doesn't work as a flashback or flash-forward or even as an imaginary story in Joker's head. I hated it; once again DC took something that could have been a generation defining movie and f-ed up (like Pretty much everything the past 30 years). Again, if you are a fan of Joaquin Phoenix (and who isn't) the movie is very watchable. But if you are a fan of DC comics, and have even basic understanding of the Joker/Batman adversity - this has to be one of the dumbest things ever. (Sorry)