Well, 11 out of 37 total Eurovision participants are under threat of direct russian attack in the future, two of which already attacked and under occupation i.e. Georgia and Ukraine, so you'd ignore that at your own risk. Most eurovision countries have greater (urgent) self-interest in grounding russia before doing the same with israel, but I wouldn't say it is impossible, especially as genocide bibi starts to blame everyone for every stupid thing he does and diplomatic relations deteriorate.

It's technically not countries participating, but broadcasters and they need to be independent of state control. The russian broadcasters were not kicked out for the russian invasion of Ukraine, but for being state controlled. They were accused of this for a long time and the invasion was the final straw.

That's right, you're making a point. Now, though, people in the comments will explain to you why you're wrong...