Although I'm certainly all for the notion of freedom, to be honest, I don't think they appreciated what they had "down in the depths of Monster Town" (Hobbit reference). They should have learned to regard their mountain home as a fortress rather than a prison. Now, in the "Overworld," they'll have to contend with the various institutions of oppression that humans call "society." That could be my inner Undyne speaking - who, herself, becomes a tyrant in one timeline, transitioning from Lawful Good to Lawful Evil just like Anakin Skywalker (when she appoints herself "Empress" after a coup d'etat).Remember Max's speech to "The Waiting Ones" in 'Mad Max: Beyond Thunderdome' where he explains to them that they should be thankful for their idyllic oasis? That could be applicable to the Underground. Unless overcrowding really is an issue. Then someone with a knack for "city planning," so to speak, should have commissioned Alphys to build robots that could perform Tolkien Dwarf-like mining operations to expand the Underground's territory outward. The extracted ore could then be used to build more robots and devices that could potentially improve the standard of living for all monsters. Alphys would be heralded as "the monster who put an ice cream converter machine in every citizen's home."Yeah, that's kind of an FDR reference. You know, because they used to say he "put a chicken in every pot." Except he really didn't. It was the farmers who raised the chickens and the grocers who sold them who made that possible. Never give "the state" credit for The People's good deeds. You see how that principle is applicable in the Underground?