As in the last days of Rome.
These critters will not be on board the Enterprise in pyjamas talking into tricorders and exploring space for the betterment of mankind. That will never happen. A civilisation can never be better than the people who make it up.
If you're paying attention, you will see this stuff has trouble getting out of the gate for about fifty years but once it starts to crumble it tends to snowball into an avalanche of decadence and vulgar anarchy. At the beginning of Fellini's Satyricon they are arguing over the price of a youth they are selling.
Anybody with eyes in their head knows that the metaphor of Sodom and Gomorrah was not a metaphor. It is cyclic and always runs as the epilogue to a civilisation that is collapsing.