On the contrary, it might be crucial for the working class that is growing more isolated by the day and prevent a lot of the negative socialization you're referencing. Which imo stems from a lack of experience of handling conversations (we really do not get enough practice outside of people we already have lots of common ground with, ie our friends), and also an increased sensitivity from this isolation "choice".
I don't think that people are "inexperienced" in conversations nor that the negative socialization comes that much from not sharing a common ground. A lot of negative socialization can come from people not having an interesting conversation, or being too self-centered, or repetitive, or convoluted, or not knowing when to just leave the other person alone.
I am also skeptical of the fact that "the working class is growing more isolated by the day". Looking around my environment, it seems that the advent of social networks (FB, Whatsapp, Instagram, etc) has made it far easier to keep in contact and to organize meetings with people. I know that I would be socializing far less if the only means of communication we had were the phone and letters.
