I do agree with that to a certain measure, though our diagnoses of what specifically makes single party rule dangerous probably don't quite cohere. To me, the biggest problem is that politicians in "safe" seats and districts just don't have a lot of accountability to their constituencies at the end of the day. Waste and grift are common regardless of party when a politician feels their loyalty to those they represent as less pressing than their loyalty to their family, their social circle, and their business interests. State-level government is the worst, because you have a lot of positions that fill and refill with the same individuals or families through sheer inertia and familiarity. My asshole House Representative has never held a town hall. Why? Because he doesn't need to. All he needs to worry about is looking out for number one, and that means that every month his ass needs to be out at Mar a Lago, not Modesto. I doubt he has any idea what the county's current challenges and problems might be; if a reporter somehow manages to corner him, he asks his staff. Before I moved out here, it was Ro Khanna, who is not much better. At least I marginally supported a lot of his activities in Washington, but I never felt especially represented by his exploits. Single party rule does not help.
But Republicans lost control of this state for a reason. They want my vote? Maybe stop fucking publically declaring war on the state, dipshits. The math on this is not complicated. I mean you really have to be a special kind of moron to be a California Republican. Sure, their rhetoric is against the Left and the Wokes, but when they come for us, they come for all of us. If they cut funding to our schools, it'll be schools in Delano that have to patch their leaking roofs with tin scrap long before San Francisco runs out of tile. When they defund the Interior or cancel FEMA "awards", it's Paradise that burns, not just LA. When they introduce tariffs targeted at dismantling our industries, they won't ask for the voter registrations of the workers at the factories and warehouses they shut down.