There was little support for the Government's shark-kill policy among families at Cottesloe yesterday, but beachgoers also raised concerns about protester tactics.
Jane and Paul Moriarty, whose children were at VacSwim lessons, said some protesters risked losing community support.
"To have an organised protest to have your say is one thing, but when you're talking about threatening people and sabotaging things, that just takes it to a new level," Mrs Moriarty said.
"Things seem to be getting personal, and it's making it worse."
Mt Lawley father Trevor Thomson said the Government had its priorities wrong. "I'm more concerned about violence, the one-punch attacks," he said.
He opposed the cull, but did not agree with threatening fishermen. "We're a democratic society, so people can have their voices heard without resorting to that sort of thing," he said.
Bedford couple Danielle and Kevin Griffiths agreed.
Mr Griffiths supported peaceful protests but said the fishermen applying for the tenders were just doing their job and did not deserve to be "bullied". Those against the shark cull should take it up with their local member.