Don’t apply to an impacted major. At Davis it is a little easier to change majors after you are there and prove yourself. It is not as easy to do that at UCSD.
If you are not a math/science major, I would talk to your counselor about taking regular calculus. I would also talk to your counselor about whether or not you should draw attention to your poor grades. Use your application to sell your strengths rather than drawing attention to your weaknesses. Just my two cents.