I am one who can walk away from contentious posts. However if if someone has actually asked the AIBU question there is no point in not saying how you feel about the situation.
It is possible to say you think the OP is being unreasonable and why. This can be done politely but if you as the OP you really do not like someone disagreeing with you don't even ask.
being a right moany pain in the proverbial
The majority of Israeli Jews do not want to occupy Gaza.