It takes more than a couple people chaining themselves to a building to actually enact change. It takes pressure from the general public as a whole. If the public ignore all the protests, then there is no pressure, and thus no change.

Protesting isn't supposed to be some nice thing. It's people getting desperate because change needs to happen, because they have no other peaceful option other than to make noise and make a nuisance. If you don't like the nuisance, then your best option is to push for the change they're chasing - particularly if you generally agree with their cause.

Protesting is literally what gave you all the rights you enjoy today, sat in your cosy chair chatting away on the internet.