Very interesting points. I agree with the idea of people wasting time on social media. Social media isn't bad inherently - like a hammer isn't dangerous inherently - it can be used to build or destroy - likewise with social media.
Another way I heard the point about stagnation put is "A rut is grave with no endpoints"
I like that saying - I might use it in future :)
Another more poetic way of saying it is - "a comfort zone is a beautiful place, but nothing grows there."