There's been massive protest in Hong Kong where 2 million of the city's 7 million residents have taken to the streets. They are protesting the potential loss of freedoms especially the forced extradition to China which they view as a tool to silence dissidents.
The 2 million protesters would be like if 2.4 million of New York City's 8.4 million residents all banded together to protest something they all believed in. Can you think of a cause that would be as important to New Yorker's as liberty is to the residents of Hong Kong?
And as an aside - 3 million showed up in Boston for the victory parade celebrating the 2004 Red Sox who finally ended an 86-year old World Series drought. Not equating the Red Sox victory to liberty - just saying it was pretty damn important.