I am not entirely sure what the point of the thread is if you didn't want advice. You're just being dismissive of anyone who doesn't say 'it'll be fine'.
I simply told you what worked for me.
Yes, I would judge any parent who doesn't introduce boundries for their children... however, i would NOT judge how they implemented those boundries. If a gentler approach works better for you and your child then brilliant. As long as you are reacting in a way that makes it clear that its not okay and you are consistent with that reaction then they will be fine and they will grow out of it.
Violence is the one area where I do have a no BS approach with my kids. But my middle child has the most horrendous tantrums and we're about a year into them and its hell. But in that context patience and cuddles are much more effective than a 'sterner' approach. I don't have a solution and I certainly don't think I am a perfect parent, in fact quite the opposite.
You and the other posters quoting my 'stern' is just as judgemental as you're accusing others of being.
But while I'm here, I also agree with the feelings books. We have had loads and they definitely help them identify how they feel. Even now my 3.5 year old likes to change the pictures on his mood board to show he's sad or angry.