If you are getting paid by tax dollars then your personal data is a matter of public record. It is vital for prevention of corruption for the public to know where the tax dollars actually go.
Including address and phone number? Doesn't that also enable public workers to be target of harassment?
California already has laws that require some transparency of who works for the government (I'm not exactly sure which data points), but allows a few classes of workers (eg. police, judges) to opt out for security reasons. For anyone who gets a phone, you have to pay to opt out of your contact info being publicly sold.
Modern society doesn't make it easy to avoid leaving a trail of contact info with lots of different vendors. This is exactly the same reason BlueLeaks was possible -- a fusion center vendor collected too much info and didn't bother to sufficiently secure it.