I agree with the assessment of @coolguy40 in employability.
If it were me, I’d look at industry contacts - very few just write a screenplay and get it produced. Where do grads end up and in what roles.
What is the UCB major teaching you about screenwriting? Is there a focus on writing? They have five classes in writing - not sure if you can take them all.
Or is it a learn about film theory type program?
I’d want the program that gives me the most exposure - and yes, I don’t know if it’s possible, but a double major would be smart.
I wouldn’t let difficulty of getting to school in such a niche major be the reason I don’t attend.
Good luck.