I worked my way through this entire thread-because I liked the title.
So here's my story:
First July trip 1976-we saw MANY tour groups, but we also saw CM's stepping in and enforcing the rules and stopping them from cutting in line. When chanting began in lines, it was allowed to go on until they entered the covered areas, then the CM's would go to the leader and ask that it please stop. Yes, the groups were HUGE and we did our best to avoid the areas where they were, but other than that it wasn't a huge deal.
Second July trip-1994-YIKES!!! Hundreds of kids in orange T shirts, cutting lines, pushing 5 yr old DN out of their way, chanting and singing at the top of their lungs throughout the park. This time, the CM's were either overwhelmed or had been instructed NOT to interfere. With some creative planning and a lot of extra walking, we did our best to be where the groups were not and salvaged the trip.
Haven't been back in July since....
I was there once during the cheerleader championships and I'll never do that again either.
Rude is rude, and Lord knows we've all seen our share of rude behavior no matter when we go to the parks. With large groups, rudeness is amplified. One family holding a space in line and having 4 people cut in, is annoying-98 of them is enough to make you avoid WDW at that time of year.
My other observation on this thread: it's a wonder some people get through their day! After all, they have to be constantly on guard for things to be offended about-and then they have to spend all that time patting themselves on the back about how superior they are to the rest of the ignorant masses.