Earlier quoted context omitted.
Any way you cut it, "feeds" are more addictive. Your family and friends only post a couple times a day, but you have all day at work to look for some quick stimulation. I watch my girlfriend devolve into this stuff. Waking up and scrolling endless feeds from reddit and insta; it's her entertainment. It's not so much worse than me waking up and scrolling Google News...maybe it's better, in that she gets less depressed…
> It's that I'm Jewish, with Israeli family... This was a hard-to-get real world experience in how fucked up people can be for no reason. Don't be too discouraged. IMHO it's as simple as there being a significant portion of the population who tend to talk shit about other people in their circle when those people aren't around. If asked, they'll often attribute this oddly unmotivated malice to some conveniently proxim…
I think you are attributing too much psychology nonsense on the matter; it's a pretty bad tendency of our times to try to make every behavior some sort of mental illness.
While part of the behavior might look schizophrenic, the reality is that it is that way for plenty of reasons, you being unable to understand/sense them doesn't mean they doesn't exist. Before even going too deep, you can always assume it's some kind of power play or a cheap way to grab attention and support. The people doing this are always working "from behind", because the whole point of it is to gain power without risking a direct confrontation (that could in theory lead into physical altercation or have them loose much more than what they want to bargain for).
I don't like this behavior for many reasons but you can't go around and pretend its mental illness or some nonsense like that; summarizing it as shit talking is a mistake. It's actually the whole point of politics and while you may have an autistic view of the world (no offense intended, I am one) it's how regular people work things out. Not everything can be a perfect competition or a science project with pure facts...