Nope, it's anti-semitic to base the criticism on the fact that Israel doesn't have a right of self-defense (see this article talking about Isreal "trying to reinforce the claim of self-defense") and downplaying the original Hamas attack (here: arguing about the October 7 attack being the biggest planned mass murder of Jews since the Holocaust, when that's just a fact... guess the next step is questioning it actually happenend...).
Israel's government is a right-wing shitshow with a few even more right idiots that should be gagged as they are obviously not even sane enough to speak in public, even less qualified for actual office... and parts of the military aren't better.
But the moment the discussion drifts to "Isreal has no right to defend themselves", "the Hamas attack hasn't happened, wasn't that bad, etc." or "It was all planned by Israel"/"It's an ongoing genocide for many decades" (the most unsuccessful one for all that time it seems...) -and somehow it always moves into that exact direction- people are very obviously not criticising anything based on facts but are just justifying the anti-semitism they already started their train of thought with.