I never really understand these kind of stories.
So, Harry Potter is a squib. His parents place him with his aunt Petunia where he lives an awful life. Worse, Dudley is magical and goes to Hogwarts. Neville is the boy-who-lived. And Lily and James still live.
And they are delusional enough to think that he welcomes his biological parents? They obviously didn't care about him when he was a squib.