i still think where males that are genticlly made at birth or we stay males at birth and some of us are born male'fes not feminine i think there something weird like there being somewhere in the world where they have feminen male'fe and female gentics and cant combine with are dna cause we would die of aids or something
It really depends on the type of genetic modification whether it is to check for genetic disorders by recessive alleles or simply for customisations purposes such as a change of eye colour.
In terms of religious views then no its unethical.