DON’T USE YOUR CAR AS A WEAPON!
Protestors blocking the road, especially when you are trying to get to work or pick up your kids, are extremely frustrating and infuriating. You might want to just drive through them slowly (or not so slowly) and expect them to get out of the way. That might have worked 10 or 20 years ago, but not today.
Your car is still a deadly, 2-ton weapon, and you can be charged with assault or attempted murder if you decide to drive through the crowd. Your best bet is to try to back out of the area the way you came, rather than trying to get past the roadblock the crowd has created.