Wow! There's not a single shore fisherman in the free world that knows how to behave or clean up after themselves. The shoreline must have been crowded. Perhaps you should have notified the authorities about the individuals that you had the problems with insted of advocating closing the area to all shore fishermen.
"Good decisions come from experience. Experience comes from bad decisions."

"Great fishermen are not born that way.....They become so through a lifetime of neglecting other things in their lives."

"Don't try to explain it. Just nod your head. Breathe in. Breathe out. Move on.