Know all about that BS and that's why I rant about the breeders that only offer their strains in feminized versions to keep you and me from replicating those seeds without crossing with a different strain or trying to self the plants to make more feminized versions of the same. Hard to do without a genetically different female as doing it with a clone of the same plant ends up with mongoloid children. Same reason you shouldn't make babies with your sister.
Where do you come up with this nonsense? It is all so wrong but you speak with such confidence that some people might mistake you for someone who knows what they are talking about.
Breeders make fem seeds because they want to and especially because growers want them. For growers it's ideal, you get all females. For breeders it's ideal because you can directly observe the female flower traits carried by both parents, what growers are actually interested in, and you can breed with the most popular genotypes. This greatly increases the power of your selection!
With regs, figuring out what female flower traits the male is carrying is so much work that basically no breeders do it, they just flower out some males and bless one, then if the progeny has no obvious intersex problems they sell the seeds (a.k.a. CHUCKING). You almost never hear of a breeder hitting the same female with several males and picking the male based on how the progeny turn out, that takes too much time and space. The main exception being people testing for CBD. ll take a fem made from two elite genotypes over a regular chuck with one elite geno and a random male, which is basically every reg seed available, any day of the week. In other words, fem seeds have better genetics than most reg seeds.
Nothing stops you from making more seeds from a fem pack like you could if they were regs. You just reverse one genotype and pollinate another. Each fem seed is a different genotype, just like regs, even if there is only a single parent because selfed beans are not clones. Crossing with a different strain or selfing is not required to make F2s from a fem pack. Again, you should probably learn a little bit about how this stuff works before you publicly rant about it.
Making comparisons of selfing plants to inbreeding humans is just asinine. You might get a lot of recessive traits popping up because each heterozygous gene has a 25% chance of the recessive allele being homozygous in each seed, same for plants and mammals. It depends on how stable the parent genetics are, and nobody has stable Cannabis genetics since everyone is chucking polyhybrids. In any event, you should think carefully about the ethics of culling plants with undesirable traits vs. culling human children with undesirable traits before making this comparison. Hint: there is nothing wrong with growing out 100 children and only keeping the best looking one to sell into sex slavery if you aren't working with human children.
The reality is so called "feminized" seeds are identical to the half of the seeds in a regular pack that produce females. There is no difference between a "feminized" seed and a "regular" seed carrying a female embryo. They are exactly the same and no test of a seed could be imagined that would distinguish between them. Meiosis proceeds normally, except you get four X pollen grains because you start with XX instead of getting two X and two Y grains because you started with XY. Just like how you always get four X ova in the female. The females from fem packs are the same as females from reg packs, neither have the male Y chromosome. They both get the exact same diversity of genetics.
It is people like you who are ruining Cannabis! Your myths have led to the pervasive chucking of randomly selected males!!