I live in an area that meets most of these requirements, plus many others that California doesn't meet. I lived in many different places, including California, and in the end it's a matter of balancing the advantages and disadvantages of each place.
You are basically defining your requirements in a way that can only be met California. If California didn't exist, would you jump in the ocean? What I mean is that perhaps one of your requirements could be relaxed so you can get many other benefits. For instance, the "100F with 90%" humidity is greatly mitigated by Air Conditioning or going out very early in the day. When I spent some time in Louisiana, which is crazy hot and humid, I was able to mitigate the heat in the way I describe to the point that it didn't affect my life.
You are basically defining your requirements in a way that can only be met California. If California didn't exist, would you jump in the ocean? What I mean is that perhaps one of your requirements could be relaxed so you can get many other benefits. For instance, the "100F with 90%" humidity is greatly mitigated by Air Conditioning or going out very early in the day. When I spent some time in Louisiana, which is crazy hot and humid, I was able to mitigate the heat in the way I describe to the point that it didn't affect my life.