Of course you have a right to your views. You can go out and protest against people having the right to protest if you wish.
If people have other priorities that they want the government to focus on instead, they have the right to protest about these issues in order to make their views heard.
If the National Front or equivalent was out protesting every weekend, then of course I wouldn't like it, but as long as their protests stayed within the boundaries of the law, I wouldn't be arguing for their right to protest to be curtailed - I would be out on the streets in a counter-protest. Either you believe in free speech and the right to protest or you don't... you can't agree with it only for causes that you think are "worthy".
Anyway, it still isn't clear as to what you actually want anyone to do about the Palestine protests. If you just want to rant and say that they're expensive and a waste of time, then fair enough, but do you actually want action to be taken to limit or stop them? If so, then what?