We are witnessing the collapse of Liberalism in real-time. Liberalism has outlived its usefulness as a tool of containing class conflict. The US ruling class has nearly consolidated absolute power and is disposing of Liberalism because it was only ever a tool used for their benefit. This is not just some Commie "zero-sum" perspective, the Silicon Valley E/ACC guys like Thiel have admitted this.
Because of this, there is no liberal/reformist solution to our current crisis because Liberalism denies the existence of class struggle -- the root cause of our current crisis. It is like trying to model quantum gravity with classical mechanics. It cannot be done, you will never arrive at the truth.
"Denied was the fact of growing impoverishment, the process of proletarisation, and the intensification of capitalist contradictions ... Denied was the theory of the class struggle, on the alleged grounds that it could not be applied to a strictly democratic society governed according to the will of the majority, etc."