This is not exclusive to liberalism, the radicalization and individualism in tough times is part of human nature. When your family’s livelihood is at stake, you’ll stop caring about society and only care about yourself.
And there will always be people who’ll pose as the saviours of the homeland and champions of the people, just to gain power and enrich themselves, while fucking over everyone else. This is how Mussolini got to power, how Hitler got to power and how many other dictators did too, including communist ones.
Btw, the dictatorship of the proletariat, aka communist dictatorships are just fascist states in disguise, concentration camps and totalitarian bullshit included.