Transferring from a CSU (assuming you get in as an out of state applicant) to UCLA, UCB or even another UC is more difficult than from a CC to UC for reason as mentioned above and also the fact that CC transfers get higher priority over CSU applicants. UCB Haas accepts transfers primarily from UCB and CC. For 2018, the average GPA to get into Haas from a CC is 3.9 and the acceptance rate is around 5%, not very good odds. Have backup plans if you still intend to come to California.