I think you are probably a "nice" person, who wants to think that most boaters are "nice". ...Well, most boaters may be nice, but the group of offending boaters is NOT nice...many in this group are severely self indulgent, and many believe that "we" are intruding on their water--and they do not like us in their playground...and I expect many of them would have nothing but scorn for you or for me, if we were to wave a flag awareness sign in front of them. And the others, the ones who are not specifically "not nice", are most likely more along the lines of people with an Attention Deficit Disorder, and captaining a boat is NOT something they should be doing ( hours of focusing does not play to their strength).
Group?? What "group"??? Do they have meetings? Are they organized? Is this a conspiracy thing???
Dude... I don't know where you're coming from but I find that whole last paragraph a bit scarry... on a number of levels.