Domestic terrorism is being normalized by a fifth column.
You'll get far more arrests when you have someone win the Super Bowl. As such, it's a slippery slope, and people should not be permitted to win the Super Bowl.
Note that there is a huge difference between protestors and anarchists wearing all black with black face masks breaking windows, setting fires, and pepper spraying people. Those people are not protestors. They go with a very specific intention and it's definitely not to further the cause of the protestors.
If anyone shows me an example of the US government in action, I'll show how the people, laws, policies, or circumstances involved were responsible for government-caused violence, oppression, and lies. I really don't understand how you're more willing to condemn activists for the bits of random acts of violence without a word toward our government that promotes and legalises the violence they use on people all over the world. Already in the last month Trump and Obama tag teamed to kill nearly an entire innocent family, including children: https://theintercept.com/2017/01/30/obama-killed-a-16-year-o...
As for your challenge, here's Portland Oregon police confirming one of the largest marches in the history of the most liberal city in America was "100% peaceful": https://twitter.com/PortlandPolice/status/822958708980260864