Why do people praise England for being such a good parent when he took advantage of Canada? Canada took care of him when he was sick and he acted so ungratefully tbh.

England isn’t a good parent figure, far from it, but you’re wrong
by saying that he wasn’t grateful for the help Canada gave him. That’s a
misconception that needs to stop being perpetuated.

Ex: He tears up when Canada comes to his aid during the American Revolution [x]. 

Ex: There’s this exchange that you mentioned where England falls ill and Canada tries to nurse him back to health [x].