50% of population can not get pregnant. Birth rate in China and Japan is down, we need this sort of technology.
The good reason is that many people want their own children and though you might find their desire immoral, they are not bound to accept your morality standards.
Do you put lemon juice on your face often, or is it reserved for special occasions? We are not sitting around a campfire, so your spooky stories about minorities - which are totes real, guys, not inaccurate in the least! - seem a tad unnecessary.
On a completely unrelated note, I'd like to mention the - irrelevant! - fact that SRS - with all its complications, such as the initial maintenance necessary to train the muscles and avoid scarring - was first created, and is very much still used, for cis people.