That makes no sense. If california voters did anything other than voted for the candidate with the D next to their name, not everyone would assume their massive pile of votes will always go Democrat. California voters matter way more than any swing state, it's just so predictably one-sided that nobody bothers to waste time there.
The same thing would happen in a pure democracy. No candidates would spend time placating any large population centers that consistently vote one way. LA/SF/NYC issues would be irrelevant because everyone will just pick the D each time anyway so it will still come down to appealing to groups that might change their minds.
The same thing would happen in a pure democracy. No candidates would spend time placating any large population centers that consistently vote one way. LA/SF/NYC issues would be irrelevant because everyone will just pick the D each time anyway so it will still come down to appealing to groups that might change their minds.