Does it make sense to move (San Diego -> San Francisco)

IGETC is mostly the same for UCs and CSUs, except that UC adds foreign language and CSU adds oral communication.

De Anza is in Cupertino (a very expensive area, even by regional standards) and is not that close to San Francisco. Diablo Valley is a BART ride away from San Francisco.

If you are targeting UCB CS or EECS, Diablo Valley or Laney has better coverage of the first few CS courses than De Anza, according to http://www.assist.org .

De Anza (and Foothill) are on the quarter system (similar to UCs other than UCB and UCM, a few CSUs like CPSLO, and Stanford), while most other community colleges are on the semester system.