We left after the fireworks so who knows if it got worse after 10:30 but it looked like the same unrepresentative crowd as last year. The KMOJ crowd was probably 1/4 to 1/3 of total guests and they were just as ignorant and poorly behaved as last year. I had a group of two hoodlum baggy pants idiots and their little skank girls jump a fence and think they were going to squeeze in front of us in line that I had to tell to essentially F off. It didn't seem that Valley Fair made any effort at additional security over last year except more people at the entrance. The police were on their way inside the park as we were walking out through the throngs of thugs that seem to love crowding at the entrance area.
Overall I'd say Valley Fair on the 4th of July IS NOT a family friendly place.