Technology has altered social dynamics in such a way that quantity has overruled quality. The trends have been towards large numbers of so-called friends on Facebook, being exposed to a large amount of human noise, feeling in competition with others in every facet of life, having shorter attention spans, but losing the sense of deep togetherness of close-knit communities of old. Urbanisation is another factor, as is high living costs resulting in limited free time.
I expect the situation will improve to some degree. The same way that people slowly learned to be skeptical of the political fake news all over social media, they will start to see low-quality online connections as a social toxin in many situations. The desire for a proper 'tribe' will follow. Websites like Meetup.com are popular for this reason.