Interesting prognosis, indeed. All societies and civilizations have a beginning and an end, the modern is not the exception as many think, and for me it is evident that there are obvious symptoms of decadence already, so it is not unreasonable to think that modern civilization can have even less than a century of life.
But you should well know that the collapse of a civilization is only the beginning of another. The increase of religious, spiritualists, and moralists of all kinds in modern society shows, as evident proof, that a new one is emerging. The famine and death that you mention is only feasible for those who cling to obstinate and obsolete ideas that will soon have no place. Unfortunate, of course, but to a certain degree everyone has the freedom to choose where to position themselves.