The obvious response is that Gaza is a very densely populated place, of course there's civilians near any given location, that's not a conspiracy by Hamas. But are there any other talking points I should hit?
(I'm not really a lib in rehab, but this seems like the comm for getting talking points straight)
Point out that they're completely ineffective as human shields since the IDF just blows them up or shoots them anyway (maybe a good time to reference Hannibal Doctrine).