I find the “outsourcing” of gestation, particularly to developing world countries, very problematic.
One of the Iain M. Banks novels, the Player of Games, takes place in a society where reproduction involves three participants. The highest status participant provides the seed, the mid status participant provides the egg and a much lower status participant gestates the offspring. Some of the power dynamics of that situation are examined in the novel (it’s a very brutal and authoritarian society.
Like pp, I have no ethical problems with altruistic surrogacy but commercial surrogacy is yet more commodification of bodies based on sex. Given some of the power structures around money/access to education and skills, especially in the developing world, it makes the Handmaid’s Tale look positively quaint and pastoral.