Corporations aren't entitled to liberty. Uber isn't a person, it's a hivemind - if it has to cut off one drone, it doesn't affect the hive. Except drivers aren't drones who can simply accept being liquidated for the good of the hive. Allowing that behavior is anti-liberty - the liquidated driver has had their means of providing for their own liberty revoked by an entity that is private, arbitrary and capricious.