I don't understand your complaint. They park RVs and boats in their driveways and yards? Who cares? It's their property. Why do you care what they put on their own property? Who even has time to worry about their neighbor's lawn?

They park on the streets? Unless you live on a private road, that's a municipal matter. Parking rules should be up to the city, not your HOA.

Honestly it sounds like you are exactly who the top-level comment was talking about. You care more about restricting your neighbors than your own personal freedoms.