I imagine the Imperium, if it presses anything, it presses fertility.
Its inexhaustible resource didn't become inexhaustible by Adam and Steve.
You want the honest truth people? The dirty secret? In the modern day, with faggotry and trannies and Feminism going global, they will no longer produce any children. No Flower Marriages for appearance, no woem pressured into marriage and babies etc etc.
Transgendered garbage will no longer be pressured to reproduce and pass on their faulty genes to the next generation.
Hardcore Faggots and Dykes will, within my lifetime, begin a slow but notcieable die off, as they simply don't produce any kids. And most likely, neither will many bisexuals.
Feminists? Again, once it goes global, guess what? A woman's desire to reproduce and have children, not sex drive and raw capacity of fertility, but actual desire to have children, will be added on to the other selective pressures. ITs a selective pressure that, up until Marital Rape was criminalized, was completely irrelevant and had no outcome on whether a woman had kids.
So anti-birth feminists will die out. And women who strongly desire to have children will out compete them, because feminism, and contraception, and societal acceptance, will allow those women to jump out of the gene pool.
You want the truth? Women who do not want children and do not desire to reproduce in the 41st millenium, will be such a stark and tiny minority that I doubt they will number even in the billions, across all the Imperium, because Feminism and contraception had made them all die out tens of thousands of years ago from the perspective of 40k.