OP's first point that mainstream liberalism defeated Chapo Traphouse is correct. The second point, that western liberalism has soundly defeated all competing ideologies is just plain not correct. Like even the major NGOs that are promoting western liberalism as a global system say it isn't.

Yeah, I wasn't responding to that guy. I was responding to your claim that since 1980, western liberalism (unclear if economic or democratic) has broadly failed.