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)
Westerners don’t believe that Israel is callous towards Palestinians. In fact you will rarely hear about them during this conflict because if you say something about Palestine, you’re automatically pro-Hamas
For sure, but at that point you can just end the conversation. You can't reason a person out of a position they didn't reason themselves into. You have to either say nothing, or be content with being correct and moving on.