Normal people don't go to protests. You're part of the fringe if you do. One political group has a much larger "fringe" than the other even though they pretend not to.
If you are spending your free time at a protest you must have a sh!tty life with little to no direction or future. And this goes for all protests, abortions, nazis, antifa, occupy, left wing anti free speech, etc. That is why progressives protest more, their lives are awful which is supported time and time again by low scores in a variety of happiness indexes and hatred towards anyone more successful than them.