Europe isn’t a continent, it’s a political entity. A continent is geographic. EurAsia is a continent.

Lol no. The european union is the political entity. Europe is a continent. Asia is a continent. If you want to talk about both of them together you can say eurasia but they are not one continent.

What delineates Europe from Asia that shouldn’t also delineate India from Asia?

Not trying to be argumentative, curious. I’ve always heard of India as a subcontinent, and when explained why it seems like Europe fits the same description.