Atomization of the individual seems much more driven by a cultural valorization of liberalism and personal freedom than market dynamics per se. If the individual is free to act on their own, without obligation to their family or higher social structures, such as by marrying whoever they choose or by refusing to share their personal wealth with other members, or by following a different religion, then these higher level structures will eventually wither away. Community can only exist as a real force if the individual has obligations to it and can be bound to it. This has tradeoffs for sure, but I would much rather live in a world with more personal freedom than one where I am bound to a social contract I had no hand in creating and limited ability to change.