Is an Elementary Education degree only a Masters program in California?
No, but not every college university offers a bachelors education degree program or an education major. Many states require a masters to teach at the high school and middle school level along with certification. They can and do offer certification programs.
Many states require a master's degree (M.Ed) with supervised student teaching to obtain teacher certification. You get your bachelor's in your intended subject area for teaching, then the teaching degree. You haven't done your homework. Look up requirements for teacher certification for the state(s) where you want to consider teaching.