I think the most effective protest would be one that directly acts against what they’re protesting against, like putting traffic cones on self driving cars or the Tyre Extinguishers deflating tires.
But that kind of protest doesn’t really apply to sending billions of dollars worth of weapons overseas unless you want to do something very illegal or violent. So whatever the people protesting think will help seems good enough to me.
No, I don’t think you’re going to do anything either way. When there was only the Raytheon protest, I doubt you called your state representatives about Palestine. Now that they’re also blocking traffic, I’m sure you’ll continue to do nothing.