Have social media platforms helped us become more social?

For your initial post, review the videos The Plague That Made People Dance Themselves to Death, How to Understand Power, and A Black Man Undercover in the Alt-Right. Then answer the following questions:

Have social media platforms helped us become more social? Or have they isolated us more? What does social psychology suggest?
Are echo chambers changing the way we see the world? How can we avoid being a victim of what some refer to as the social media bubble?
How can social media developers encourage users to engage in a constructive, respectful dialogue with others—both within and outside of their communities? Make sure to provide concrete examples.
Should social media users be restricted to people older than 18? At what age might a person become able to begin using social media in healthy, adaptive, and socially responsible ways? Explain your response.
How does the concept of group behavior apply to any of the following programmatic course themes:
Self-care
Social justice
Emotional intelligence
Career connections
Ethics