"I'll let my toddler know that it's okay to act a fool in public and scream until I give them the negative attention they wanted." -No real mom ever.

What you are teaching is for parents to continue their own growth. None of us are fully formed mature parents when we start parenting. We all learn on the job. Ideas change with the generations, so there are few good "modern" guides.

It's called the terrible twos and terrible threes for a reason let them work it out like you said it's a normal part of their development and is no reflection on the parent. Too many people worry about what others would say about their parenting. Toddlers are going to be toddlers and it passes. You're absolutely right. It is okay for little humans to have big emotions. ❤

Your right of course we don’t allow them to hit or break stuff or run in a street however crying or getting upset is normal even for adults that why we need to teach them how to cope with there emotions in a healthy way

Parents are not bothered by their kids emotions. It's that the kid's being disrespectful. Like this example. The kid should never act anything like that because their parent didn't do what the child wanted. The parents need to have authority over the kids, not only for the good of the child but for the parents, their families and even the society. "Oh it's not possible for them to understand at that age" -says every early childhood education friend i have. Yeah well why don't you ask parents what they're doing so that their two year old actually does listen? Our society used to be strong now everyone believes any lie that has a scientific study attached to it