I'm not saying that.I don't think removing a class necessitates removing other objects which have a current connection to that class. You can, but you certainly don't have to.
The quotation that started this line of thought was that turning classes into subclasses would lower the amount of spells and feats.
I argued that doing so would create more spells as you would have to make more spells to mimic the classes that were downgraded and forced into the new parent class' system.
That's my point.I don't think that's necessarily true. Not putting in a paladin class doesn't change the existence of a paladin archetype, they might have simply moved smite-related abilities to cleric or fighter (or wherever else would be appropriate to emulate the paladin archetype).
A paladin subclass would require more spells, not less.