Tips for unsolicited advice to let baby CIO

Moms that are against cry it out, how do you handle it when you someone tells you that you should let your baby cry it out without sounding like you think your better because you don’t do that or without sounding rude, especially when you know the person giving the advice is pro-CIO?

I recently was told that my almost 6 month old should be fine with only eating one time overnight and if he wakes up more than that, I should just let him cry himself to sleep because he’s not really hungry.

I personally don’t believe in CIO, but have a hard time explaining why. I know I shouldn’t have to explain because it’s my child but if it’s a close family member or friend I always try to explain why in case they are ever alone with my child so they don’t do anything I’m not comfortable with.