I had a thought recently and wanted to see if anyone else has opinions on it.

Currently, there is still no male contraceptive that has all of these attributes: reliable, reversible, convenient and ongoing. (I include the last two attributes to make a distinction that rules out condoms.)

My thought was, would our economic systems and social systems be able to handle the impact of such a breakthrough, if boys and men had such a contraceptive available to them and it became mainstream to use it throughout their lives, like taking a morning vitamin?

It seems to me that such a change would spell ruin for industrial society in its current form, including precipitating a sudden and significant drop in population growth. It would rule out accidental conceptions entirely*, and make the decision to become a father much more deliberate and rationalised over a longer term. It would also, to some extent, tilt the ownership of that decision away from women and towards men, particularly for younger men who rarely choose a vasectomy today.

Would our culture have a reactive response by somehow restricting the use of such a contraceptive? eg. Would parents from conservative and/or progressive perspectives discourage their sons from adopting its use through shaming? Would subcultures of women respond by refusing sex or relationships with men who use it?

* EDIT: Obviously I'm leaving out the possibility of deliberate tampering. I'm aware that it does happen, but I consider the suggestion a little insulting to most women.

EDIT 2: For those interested, I looked it up and unintended/unplanned pregnancies represent 45% of all pregnancies in the US, and 60% of those result in births. So, unintended/unplanned pregnancies account for over a quarter of the natural birth rate in the US.

(For these stats, unintended pregnancies include those that women themselves say they did not want or that occurred earlier than they desired. They do not take into account male partners' wishes or expectations.)