I actually agree with your opinion, but that’s not why you were downvoted. It was because you concluded it had to be messages in support of Palestinians that were being deleted.
Look at the comment I’m replying to. It’s net positive at this time, 7-3. The issue isn’t what you’re saying at all – this comment is incredibly sensible and very apt condemnation of Israel’s government.
The issue was the people who not only believed that, but also believed the Hamas was justified in killing civilians and everything else they did. That Hamas got a pass for it all because they were fighting Israel.
That should strike you and me as not only disgusting, but incredibly ironic. The extremes of this issue actually make the exact same argument, that X is justified in all its actions because Y wronged them. They just switch X and Y, and pick events from history that support their claim – and there are events which fit both.