How many ways can I put this?
You can't fight City Hall; The horse is already out of the barn; Humpty Dumpty can't be put back together again; The ball has already gone thru Bill Buckner's legs; 'Reconquista' already has built their beachheads X10; The New World Order has already spoken...
Aye, but we'll still fight on matey on a wing and a prayer ;-)