Repeated "Safari wants to use the 'Local Items' keychain" alert
Mike,
It sound like you've got login data for at least one web site stored in Safari, and the browser is having a hard time accessing it.  Open up Safari Preferences and click on the "Passwords" icon, then delete everything in there, if that's what you want to do. That should keep Safari from accessing your keychain, but it also means you've lost all your stored passwords.