The point about the desire to increase the population, is the desire of sexual interest.
Do you not know why we have sexual interests to begin with?
Heterosexuality has nothing to do with birth control.
Births can be controlled practically and literally by not engaging in heterosexuality.
Being that any other sexuality is a disorder from heterosexuality, the order of this sexuality is sexual reproduction which would mean surviving ourselves.
The point about increasing the population or maintaining the population has to to with our desire to survive.
Anything else would be antithetical to our organic natures.
To actually to desire to survive your genes currently right now , heterosexuality is just an extension for continuity of that .
This idea of being "anti- population growing" is linked to the attitude and programming of embracing birth control, stunting our survival, stunting our genes, stunting our growth via diet , lifestyle, particular drugs, depleting life.
In order to legalize and legislate these different things that are actually depleting, socially, there has been a conditioning to embrace and accept all these antithetical things as life's meaning has been reduced to pure hedonistic liberal values.
So the question, to get the epicenter of the topic.
Being that heterosexuality concerns sexual reproductive health and replenishing of life as extension of our living like how we consume what we do to do the same, why would birth control be involved when heterosexuality doesn't control birth?
You have to manipulate heterosexuality so that birth can be controlled like stapling the stomach which is manipulation to control what it digests.
Next question, if you do not manipulate the natural order of things with heterosexuality, if you don't attempt to control birth engaging in heterosexuality, does this change the nature of heterosexuality?