They erased the NCR from existence and had contrived plot and cringe dialogue.
The diversity was a strength, though I’m not sure why the Pre-War United States was depicted as being highly jingoistic yet not racially segregated - which the United States was until 1964
Getting rid of the NCR is ludicrous and is blatantly just Bethesda diminishing the creations of everyone who isn’t Bethesda.
3 and 4 are the worst stories in the series. Yet Bethesda seems intent on making them the main stories.
I am dreading seeing how they incorporate New Vegas given what they did to the NCR. I would rather that they not even touch it at this point