I think he could see it because he still lived in the rational domain. Much like David Horowitz, if you can be rational the truth should reveal Marxism and other secular philosophies to be dead ends.
Unfortunately, most progressives closed themselves off to rationality and exist in an emotional, self-serving state of mind. That is fertile ground for progressive, liberal ideas to take hold.
This is why the left wants to make everything about feelings and drag the schools away from teaching reason, logic, and the Judeo-Christian roots of the country.
Sever the anchor (destroy traditional values) and destroy the rudder (substitute emotion for reason) and the ocean of liberalism can toss people around until they break on the rocks.
Excellent points and why I fear for my country....
This generation has been throughly indoctrinated in progressive ideology....
Most don’t even know it because critical thinking skills and lack of basic different philosophy are no longer taught...
Only different versions of Marxism...
When they crash upon those rocks, it will be a rude awakening...