Well everyone have rights to use roads. I agree to Kathleen's point. How about this?Right back at ya:
"If you exercise your right to use the road as you suggest then they no longer have the 'right' to protest on it, thus robbing them of their right.
How is that fair?"
When two people with rights to the same public space want to use it for conflicting purposes the police and courts will seek a solution that accommodates both.
For example, you could take a different route, and on the side of the protest, they can limit the duration of their protest, and allow emergency vehicles through.
It seems fair to me. If it doesn't seem fair to you, I suggest you have some entitled idea that you own the road and that your use should be prioritized over other people's.
Choose a designated area where you don't interfere the flow of car and public transportation flow. People need to get to work and school.
How is that for fair?
You don't need Police and courts to choose an area that do not interfere with flow of traffic. You just need common sense.
And people don't need to make a detour and spend extra hours to travel to work and school for a benefit of one group only.