Ben, it's not just cyclists, almost the entire population seems to have become dumbed down. There is no longer COMMON SENSE, good sense certainly is not common.
This lack of judgement has coused me to quit participating in century rides. The lack of cycling ettiquette, and rules of the road just keeps it from being enjoyable. :
My only hope is that there will be a 'thinning of the herd" and only those with common sense survive.