My wife always compares my parenting with her sister's husband's parenting and thinks he is a much better father than me. I find this comparison annoying and heartbreaking. How do I make her understand this?

First of all she is stupid Secondly Try to make her understand That everyone is different u look ur kid and husband y u r putting nose in others. If others husband eating s***.. u cant eat s*** right So same things goes with u Forst try to make her understand nicely with love.. if still she doesn’t thn u can use different tactics