That's not really true.
Six representatives are 5% of the 120 combined state representatives, while the population of those 20 northern counties is a little under 2 million, which is 5% of the almost 40mm state population.
That dog won't hunt.
“California’s northern most counties are suffering from a lack of representation in the state Legislature. Twenty Northern California counties have 6 state level representatives, while the southern 38 counties have 114 state representatives.”
Representation is based on the number of people, not the number of counties.
well folks can talk % of representation however it all boils down to leftist urban progressive democrats dictating their failed policies to hard working Californians (yes there are some out there).
California, like the rest of the states, are controlled politically by the largest cities in the state, ie: where the population is. This is especially true of the coastal states, where the majority of the population is close to the coast. Oregon is the same way; most of the population is concentrated along I-5 out to the coast. Same with Washington state.
A push to split off nothern california could work, mainly because of the low population density, lack of a large population center, and limited coastal access. IOW, other than political leverage, you could split northern california and southern oregon off into a new state, and neither state would miss them.
Northern California has pot plants. Southern California has people. It's called proportional representation. And it's the law.