First of all, if you're wondering why we still don't have a cure for cancer it could be partly because this is the sort of thing the medical field is focusing its energies on now. Rather than figuring out better ways to treat and heal people who are physically sick, hundreds of millions of dollars are being invested into turning men into women and women into men.
Now you might point out that, well, the medical field can do both. Right? It can make Frankenstein monsters and it can try to cure cancer. Well, yeah. Theoretically it can work on curing and treating diseases while also devoting time to putting vaginas on men. That's true. The problem is that these two projects are fundamentally at odds. On the one hand, they're trying to make sick people better while on the other hand they're exploiting sick people, mentally sick people in this case, and mangling their bodies horrifically for profit.