The bigger issue is access to health insurance. After 20 years in private practice, a friend of mine had to shut his practice down and become an employed physician. Why? He had Type 1 diabetes and suddenly his health insurer refused to cover him and any of his employees anymore. Out of the blue. So several people lost their jobs. Even before the ACA, premiums were jumping radically year after year.
We also forget many of the provisions in the ACA: Full coverage of vaccines, well adult and well child visits, screening mammograms and colonoscopies as well as screening labs, such as fasting glucose and lipid panels. Contraception and Pap smears. That all goes away.
Another important provision was to set a limit on insurance company administrative costs at 20% of premium revenue.
Last, lifetime limits on medical expenditures went away with the ACA. This is a big deal for people born with major congenital issues, such as congenital heart defects, cystic fibrosis, biliary atresia (requiring a liver transplant at a very young age).Or the extreme preterm infant who is in the neonatal ICU for several months, and who may have long term problems such as partial blindness, lung damage, short gut syndrome, etc. It is wrong to "punish" people who were born with major problems.