I agree that some parents, usually mothers, seem to revel in the fact that their children are loudly and aggressively monopolising a social event.
The worst example of this was at a party at a town hall, where the mother of a rather timid 6-year old girl had hired a bouncy slide.
The mother spent most of the party politely reminding a group of five over-exhuberant boys of the rules of use for this slide.
The parents of the boys did nothing to enforce the rules, and sat laughing as the boys threw themselves down this 8 ft slide in ever more dangerous ways.
They also stopped anyone else going on it, as as parents we felt it was unsafe.
Eventually one fell backwards off the top, breaking his leg, and having to be ambulanced to hospital.
And the mothers all had a go at the mother of the party child, for hiring something so dangerous.
So, I think that natural male exuberance is fine; being rowdy is fine, but there is a need for parents to teach their children (male or female) about appropriate behaviour, and how to be a good guest.
Otherwise the child will be viewed as a pain in the ass, and excluded from future events - which isn't fair on the child.