I hate when strangers come up to me in public because my son is tired and crying and say "you know…

I hate when strangers come up to me in public because my son is tired and crying and say "you know you could pick up your kid". Like I know I can but you don't know my kid. It won't do anything because he isn't in bed. He won't calm down until he's in bed to sleep. but thank you for thinking you know how to parent a strangers kid.