Thank you answering my questions.
There could be many reasons for your denials so if you are able to find out, that would help with the appeals if you choose to go forward with that option. Since UCD and UCI accept TAG for Sociology, definitely possible major space was more limited for non-TAG applicants.
Good luck and please keep us posters updated.
Please note that only 3 UC’s consider your PIQ’s for transfer: UCI, UCLA and UCB however if you are a borderline applicant the PIQ’s can be utilized during the admissions process. Hopefully the PIQ’s and comprehensive review will favor your circumstances with the remaining UC’s.