Blissful Loneliness

Nowadays people are so insecure about themselves. I often think if this is due to the compulsion form outside world or an inner sense of loneliness? Maybe I haven't figured out the answer yet, but there are certain realisations that often keeps bothering me in my sleep.
Anne Frank once quoted ---
" Deep down the young are lonelier than the old."
Maybe the loneliness is an important reason behind this insecurity which often leads to deadly consequences. Some people, how hard they try never get use to the world. They have their own flow of life, way of thinking and their prespective is a lot different. They become alienated and eventually,  thrown out of the common flow of society, and by the time they engulf this hard truth, it never goes down the throat. That's how life is, full of ignorance towards the ones who cannot, walk with the flow and often struggle in keeping up.
They enclose themselves in a tight shell, never even realising that 'if there is life there will always be hope.' They think that for them Apocalypse is much nearer and the walls closes in, so does their opportunity to join the flow as well as their hope of living. They observe the hoplessness in hopes and dreams in reality and soon they encounter oblivion, and eventually everything ends...