Do you not have a local independent candidate that you can support?

They almost certainly won't win the seat but your vote may encourage more, non-party affiliated people, to stand.  People with their own views and interests rather than having those views dictated by party HQ.

It's the only way we'll break the politics of party confrontation.  Vain hope I know but if all those people who say they don't trust any of the parties voted for an independent then they would be a group to contend with.