Rude family

So husband and I have been together 10 years, married 3 years, TTC 2 years. We have tried everything, and due to his male factor infertility, IVF w/. ICSI is our only option, according to our reproductive endocrinologist. We can’t afford it because our insurance covers nothing and I just started a new very low paying job. I purposely took a pay cut to pursue a job that is my passion, and I’ve never been more happy at work. I had worked for several years in a couple positions that I hated, and ended up having to see a therapist and temporarily take medication

because I was so stressed and unhappy daily with my work. So, we can’t afford it because of me. In my defense, when I made this decision, I never thought that we would have to do IVF.

My husband’s sister made the comment that if we can’t afford IVF, we can’t afford to raise a child. She is two years younger than me and just had twins. They had no trouble conceiving. She and her husband work for his family’s company, and were LITERALLY millionaires within a couple years of graduating and starting working. How do I even deal with these comments? She’s been handed everything she’s ever gotten in life, and never faced a hardship. She went to private school and university on her grandparents dime, has no student loans, and just bought a brand new Tahoe. Maybe she’s right. But am I wrong for wanting to clock her in the jaw, and give up on having a good relationship with her?