What is the true meaning of Matthew 19:9? I see and hear about adultery and divorce, it is an epidemic? ?

Anyone can get a divorce for any reason because there is a separation of Church and State (at least here in the US) and the State is the governing body that grants divorces. It is much more difficult to undo a marriage in the Church. How many people do you know, for example, that have been married in the Catholic Church more than once. Not too many "irreconcilable differences" there.