As nice as it would be, the searchers are all people who've had specialised training. This isn't like when a kid wanders off in the woods, and you need bodies spread out to cover maximum ground. It's more like searching through your vacuum cleaner bag for a lost earring back, but on the biggest scale possible. The right hands are doing this work. As much as we'd all like to push energy into doing something, this is a job for them. And the dump is a crime scene, and a toxic one, at that, so it's not open for the public to support in that way, eg. with water and snacks.
But yeah, some people are able to wait better than others. I fully support people who protest, and the right to protest, but I don't think the protest at the home is helping anyone, and there could be more productive things they could be doing at this time. But some would look at me watching this thread and point out I'm not helping, either, and they wouldn't be wrong.
EDIT: MOO, and all that.