There are no binary questions in a democracy. Binary questions dont exist. There are a multitude of opinions, on any topic, always. Protests are also a fundamental democratic tool.
To answer your question, the value of a protestor, remains the same whether or not they are informed. Therefore A and B, have the exact same value and how informed they are, has no bearing on their value, in a democracy.
When you go to vote, you are not questioned whether or not you know about the issues. You may or you may not. But you get one vote the same as everyone else.
When one goes to a protest, their presence counts for exactly the same as someone else whether or not their reasons align with the original reason for which the protest was called for. Whatever the reasons, they are all valid reasons for one to be there.
Now if that is not a straight answer, then what is?