Mahal ko, first things first, you're 39 weeks at may medical concerns na (baby's growth lag, X-ray findings), so please listen to your OB's recommendation about the CS. Your health and baby's safety come first, always.
Now, about what you're going through with your partner, anak, hindi ito normal at hindi mo deserve yan. Verbal and emotional abuse, especially ngayon na heavily pregnant ka, is serious. You're stressed, and stress isn't good for you or baby right now. Ang decision about delivery method ay medical, not about cost or what his coworkers say, your doctor knows best.
A few of us mums talk about this a lot: kapag may partner na hindi nakikinig at nag-blame pa, sometimes you need to bring in someone you both trust (a family counselor, or even just talk to your OB confidentially about the stress you're feeling). Your parents helping with 10k was generous, they're supposed to support you, at that's love, hindi obligation na dapat bayaran ng partner.
After baby comes, please reach out to someone, a trusted friend, family, or even a counseling hotline. What you're describing sounds like too much to carry alone. You deserve kindness, especially now. Take care of yourself, ate.