Choosing to be alone (isolation) is not the same as loneliness. Honestly, the world has changed a lot, and that might end up not being a big problem in the future; maybe having isolation become more socially accepted wouldn't be that bad.
The problem we are seeing right now is that it looks like everything is moving towards a kind of social-contact-unfriendliness. Too much stress, connection (the expectation of being always reachable, and therefore available for work), busy streets, dominated by cars, big and impersonal chain stores, etc. Many of these are not necessarily bad by themselves, but they also had an important role in social interaction that has shifted now, and we might need time to find new spaces and solutions for that interaction.
The problem we are seeing right now is that it looks like everything is moving towards a kind of social-contact-unfriendliness. Too much stress, connection (the expectation of being always reachable, and therefore available for work), busy streets, dominated by cars, big and impersonal chain stores, etc. Many of these are not necessarily bad by themselves, but they also had an important role in social interaction that has shifted now, and we might need time to find new spaces and solutions for that interaction.