No I disagree. Northern Europe naturally fall into loneliness with their culture combined with dependency on the state. Family grouos are small and people are easily siloed. Once you start a family of your own its not uncommon to lose almost all relation with anyone else outside your partner and children.

Troublemakers ( as in physically and/or mentally Ill ) are handed off to the government. The government are also responsible for helping you take care of the children and make ends meet financially.

Making it less necessary to maintain connection with family and friends. And so everyone silos up.

For better or for worse Id argue that socialism has very much contributed to loneliness in northern europe. Not American influence. This problem predates the internet and smartphones.