A thing to understand about landowners. They don't see bad fishermen and good fishermen. They just see fishermen and their property getting trashed.
fishermen= property trashing. thats all they see.

I think if access is to be maintained in places like this it's gonna have to be the goodfishermen cleaning up after the bad fishermen( and other property users).
If the good fishermen don't do it then the landowners will close the access which they have every right to do.
right or wrong it won't matter, if you want access take a garbage bag and clean up after the garbage people. Oops there i go again making judgements about people based on their actions. your damn right I do.