Zardnaar
Deity
I dunno man. The baby boomers went from peace love and understanding and protesting the Viet Nam debacle to being the "me generation" of wealth flaunters pretty handily. It is possible that current liberals could be sold on a world war for economic gain, if it were packaged properly.
They wouldn't be liberals at that point though, left wing authoritarian sure. They would have to go to war, cull the world's population (5 billion dead,) and then exclude 75% of the remaining population from the world's economy and reduce women's participation in the workforce to 10% or so.
It's basically va dystopian sci fi scenario at that point.
Impose liberialism by force world wide and kill anyone who disagrees. China, India, Islamic world is around 4 billion most if them would have to go. It's a funny dystopian type story I suppose.