I notice that no democrat politician has been asked to disavow these riots or anything else. For that matter no one in the media has challenged the media's implicit and in some cases explicit encouragement of this violence.
We know the media would have immediately demanded that Trump and other republicans disavow any white person who committed an act of political violence. We also know that there would be a long line of republican cucks eager to do so, eg McCain, Paul Ryan, Nikki Haley, Lindsey Graham etal.
What we are witnessing here is our country descending into tribalism. Policies, fairness and morality take aback seat to supporting our tribe. The more irresponsibly the left acts, the more determined the right becomes to back our president. The more we are demonized by leftist crazies like those Berkeley and NYU rioters, the less likely we are to listen to any sort of reasoned argument.
Tribalism breeds corruption, both financial and political. If you doubt that, look at places where tribalism is the dominant philosophy, eg Africa, latin America. Solidarity with your tribe becomes the paramount factor in all decision-making. It is not an unreasonable approach, because if the other tribe gains power, they are sure to take retribution on you. Just look how Obama punished wealthier white people. Their leaders were too intimidated to fight back, so new leaders were found who had more backbone.