The conversation starts with the definition of racism (4:30) as defined by 'Chris Matthews': "Racism is the belief that one race - whites - should rule all others."
The black woman immediately starts conflating racism with 'institutional racism', which is clearly a different concept, hence the qualifier 'institutional'. The imprecise language-use by left-liberals in the USA could have various explanations. Chiefly amongst these are that they're either ignorant or intentionally changes commonly accepted definitions to suit their own political agendas.
Another funny bit was Shapiro claiming that libertarianism would have prevented the Jim Crow laws from existing in the first place. Not certain what his entire argument was, but it struck me as particularly amusing, given the amoral aspects of libertarian 'free market' concepts.
Forum-autist, coming through!