@cjamcmahon thanks for reply. It is flattering that professional psychologist agrees with the gist of the arguments.
Regarding, mimetic theory of desire and scapegoating mechanism. I think these concepts are 2nd order explanations. The effects of social media is better explained by simpler concepts/explanations - social comparison, symmetric/asymmetric replies to cues of social comparison, effects of upward/downward socail comparison.
From theoritical perspective I lean on evolutionary explanation of cooperative human emotions - http://www.sscnet.ucla.edu/anthro/faculty/fessler/pubs/Fessler_Strategy_Of_Affect.pdf.
If we use simpler (first order concepts) then “mimetic theory of desire” becomes symmetric replies to cues of social comparison.
The usage of the concept symmetric/asymmetric is important as it allows us to see that people can have asymmetric replies that are just as good (or almost as good) as symmetric replies in regards to psychological wellbeing of the individual, in regards to societal discussions asymmetric replies are more beneficial then symmetric.
The “scapegoat mechanism” can be explained in terms of antisocial/malignant envy and/or downward social comparison, combination of which leads to bullying (violence in digital world).