Neither is Australia, and yet...

Eurovision isn't European specific, despite the name. think of it being like the world series, but in reverse. sure 29 out of the 30 participants are all in one part of one continent, but maybe someday some of them will be in a different continent

Israel controversially participated in 2024 and is set to participate in 2025.

This confused me too, but I recently there's a thing called the European broadcasting area. There are quite a few non-European countries that are eligible, but choose not to compete (such as many of the countries neighbouring Israel)

Asiavision

To be fair, Ireland has been pretty open and consistent in its support for Palestine.