I didn't watch season 3 of DISCO or Lower Decks so can't comment on that but DISCO s1/2 and Pic S1 sure does focus on those. Unless of course forced organ harvesting,
VOY S1 Ep 5 "Phage."
TOS S1 Ep 0 "The Cage."
DS9, S3 Eps 11 and 12, "Past Tense, Parts I & II."
future crackhead deadbeat moms,
First off: The invocation of the stereotype of a "crackhead" in reference to a black woman is, whether you consciously intended it to be or not, a very racist thing to say. I'm sure you didn't intend it, but it is. I strongly urge you not to do that again.
Secondly: With regards to the idea of sympathetic characters who are bad parents:
TOS S2 Ep 15 "Journey to Babel."
Star Trek II: The Wrath of Khan. DS9 S6 Ep 3 "Sons and Daughters."
With regards to sympathetic characters with substance abuse problems:
Star Trek: First Contact. T'Pol and Trellium-D in ENT S3.
mutiny... committed by main characters with little to no consequence
TOS S1 Eps 15 & 16, "The Menagerie, Parts I & II." TOS S2 Ep 5 "Amok Time." TOS S3 Ep 24 "Turnabout Intruder."
Star Trek III: The Search for Spock. Star Trek IV: The Voyage Home. Star Trek VI: The Undiscovered Country. TNG S4 Ep 3 "Brothers." TNG S7 Ep 12 "The
Pegasus." DS9 S1 Ep 18 "Dramatis Personae." DS9 S3 Ep 21 "The Die is Cast."
Star Trek: First Contact. Star Trek: Inusrrection. VOY S7 Ep 4 "Repression."
Etc.
and murder committed by main characters
Violent acts committed by main characters acting under the influence of alien mind control or mind-altering phenomenon have never been depicted as legally binding upon the characters. No one court-martialed Geordi for trying to assassinate the Klingon ambassador under Romulan mind control in "The Mind's Eye." No one held Data, Troi, or O'Brien responsible for their actions in "Power Play." No one held Picard criminally liable for the deaths of thousands of Federation citizens he perpetuated as Locutus in "The Best of Both Worlds, Part II."
genocide commited or condoned by Federation citizens or the Federation itself
TNG S2 Ep 15 "Pen Pals." TNG S7 Ep 13 "Homeward."
Berman trek showed the cracks in the surface of the utopia that Roddenberry set up as the exception to the rule whereas current trek not only focuses on them but shoves a crowbar into them to make them bigger so as to make them the default.
No, they're still the exceptions to the rule.