"Crossing the Rubicon" has connotations of eventual success after the initial period of turmoil (e.g., Julius Caesar's titular crossing of the Rubicon causing civil war in Rome which eventually led to him founding the Roman Empire)
"Crossing the point of no return" is more general
SSS Chief, when Ruina said the Russian economic collapse would follow the 1997 Asian financial crisis, did she mean it as a knock-on effect or just a general timeline of events?