They would be if Israel had some restraint but they decided to do a full blown ethnic cleansing which at some point becomes hard to overlook. The one and only time I watched Eurovision it was held in Tel Aviv and I remember that there was only one instance of protestation against them where a participant band displayed an anti-Israel banner. Apart from that people didn't mind much.

I can only speak for the LGBTQIA+ crowd, but ... i mean, let's face it, that is the core audience. And there's a pretty clear split between the Queers for Palestine faction and the homonationalists, and it looks as if the latter are finally losing. This is in large parts due to queer solidarity for Palestine having already been clearly articulated way before the invasion of Gaza went underway, and calls for boycotts and an exclusion of Israel coming from that very crowd beginning as soon as the war started. What's discussed itt didn't come out of nowhere, it's been boiling up for half a year, and resting on foundations much older than that.