I think you have some very valid points.
Here is one that I want to bring up along those lines that in essence supports your posiiton.
Think about the nature of progression of personal communication in the past several 100 years. These are an anecdotal estimate, there is no scientific basis, just my educated guess, so play along
Pre 1850- 98% face to face verbal, 2% via letter writing
1850-1880- 97% face to face verbal, 2% via letter writing, 1% telegraph
1880-1980- 90% face to face verbal, 7% telephone, 2% via letter writing, 1% telegraph
1980-1995 - 75% face to face, 10% telephone, 10% email, 4% texts, 1% via letter writing
1995- 2005- 60% face to face, 15% emails, 10% telephone, 10% texts, 5%-Social Media
2005- Today 40% face to face, 20% texts, 15% social media, 10% phone, 10% emails
See the trend? Face to Face interaction is becoming less and less relied upon for social interaction and communication. People soon forget that there is so much lost in translation without the ability to see body language. So much can be misinerpreted via non-verbal non face to face talk. I think this reason more than any other is why we see so much of an increase in the vitriolic tone of communication now.
And society has suffered.