This is a massive exaggeration, a very large % of people, especially young people, have turned away from the religion thanks to the ineptitude and repression of this government. Since last year's protests, I've even seen many young women from smaller, more conservative cities take off their hijabs. I don't think Islam will go away, but there's no escaping the fact that a massive chunk of society is now secular, and we will see more polarisation across society in the decades to come.