Respect and Disrespect

I've talked to you guys before about this little boy at my church who's super disrespectful, took my friend's hat and threw it, talks ish and stuff, acts up and I told him I didn't like him, I told him he was a rude little boy and that's why people don't like him. Well I had another encounter with another rude little boy on Sunday at church. This kid was all up in my grill, well all up in all our grills, he punched one of my friends...granted he's a kid and it didn't hurt...but he literally swung at him. So this kid was being a bother...so I grabbed him, not rough...just to bring him to the side and tell him not to get in the way. This kid gets all angry and starts grabbing my shirt...and I get cheesed at this point...I tell him...you're a rude little boy, you need to learn what respect is...you're lucky I don't hit you...stop being a baby. Now I know you guys might think I'm harsh, mean and perhaps overboard...but I've taught grade 4-6's at my church...which is what grades these kids are...they aren't dumb...matter a fact, they're too smart for their age...the internet has taught them way too much...they know about like freaking pornography and all this explicit music and all these bad words and stuff...they're smart...so to use the excuse of oh they're little kids go easy on them...to me is UNACCEPTABLE. As parents, y'all need to teach and actually parent your kids, they can't go about life thinking it's okay to act like a damn fool. What if at school, they hit someone...you can't go...oh well he's a little kid he didn't know better. YOU have to teach him better. That's why I don't and I didn't feel bad for that little kid when I told him off...being young or cute is not an excuse for disrespectful and stupid behaviour.