These were completely valid short-term responses to a situation where an effectively quarantined country had a small outbreak in Venice Beach and we didn't know a lot about spread.

But we were not that country. If the front door is wide open and there's a large sign above it saying "Free stuff - take what you want" because your spouse wants to embrace minimalism and throw away all your joint belongings, then triple deadbolting the back door and installing security cameras are not effective measures to protect your belongings.

There are other policy areas where states can experiment with "Red state" vs "Blue state" policies and compare how they perform, but pandemic spread is not one of them. The most permissive line of defense is the decision that has been made for everyone, and all it takes is one person (we used to call these 'bioterrorists', now we call them 'Presidents') to decide to "get this over with before the election", and it renders any other sensible precautions moot.

Areas where very aggressive precautions were implemented to counterbalance reckless policies elsewhere... didn't do that. You can't do that, without a very strong quarantine around the different policy regions.

This does not offer any commentary on the idea of sensible precautions, in a vacuum. The politicization of COVID that happened very rapidly didn't need to occur, and it did not occur in most other pandemics in this country, or in many other countries during COVID.

You picked two odd examples. A beach is debatable as being capable of being opened and closed, and whether or not a person is tresspassing, but parks are generally managed by the state or country. Of course they can close down. They typically close from subset to sunrise.