what do you think about people who keep comparing this movie to Lizzie mcguire movie?

I am so annoyed with those people.They are saying Selena is copying Hilary Duff.Just because the movie has a similar plot, that doesn't mean she's copying.

what are your thoughts?
do you like/love both pelikula like I do, without bashing on the other one?
or you just hate Lizzie mcguire movie?