Why does it bother you how other people want to live? Not everyone wants to live in an Arcology. If you want to, then go for it but let other people live as they want.
It makes it nearly impossible to have walkable area around which smaller and more organic experiences can develop. It also makes o very hard to develop any kind of community.
Then there are the economic implications sprawl. It makes the city instantly dependant on cars and roads for everything. Things such as school transportation, policing and emergency response also become more expensive, as fewer people inhabit the region per mile.
It is like buying a pickup truck for everyday commutes. Sure, you can do it if you like it. But objectively speaking it is rather inefficient.