You can either mitigate the inevitable damage
At some point we need to admit that harm reduction still means harm. At the very least, we shouldn’t berate people for looking for alternatives when the options presented would both cause unnecessary damage.
If absolutely nothing else, it’s conflating support for Palestinians with support for Hamas and is suggesting that the use of indiscriminate explosives is a cool and funny thing to do (assuming you believe him that it was a joke).
But more to the point, if you were to randomly say “I hope you don’t die” or “I hope you don’t get cancer” or even “I hope you don’t stub your toe in the middle of the night” while having a heated argument with someone, it will never be taken as you actually hoping for those things to not happen.