It still matters that they elect 53 members of the house of representatives (and two senators via a one-party election).
It’s why I believe every member “elected” from said state should not be seated pending a thorough investigation of every race, voting methods, vote counting, registration, et al. Since 1996, through very questionable methods, they have systematically removed most of the Republicans from office. The GOP had 26 out of 52 members (tied), and that number if now 7. They stole half of the 14 seats in 2018.
At no point since 1994 has a Republican candidate defeated an incumbent Democrat in California (for Congress). With hundreds of races, this is literally a statistical impossibility. They were stealing races in Republican years when they should’ve been losing.