I am not sure at all how would we stockpile 10 years of food for each American - most of the kinds of food cannot be kept for that long. And what can be kept is unlikely to make a balanced diet.

Moreover, I am not sure how long will it take to re-build the farm industry if most farms will close. I think "10 years" is too optimistic, given how many farms will need to be spun up.

A stockpile of 10 years of food isn’t the same thing as 10 years of the modern American diet. Don’t expect veal from a government warehouse.

That said, we can preserve viable sperm for 50+ years. https://www.techexplorist.com/worlds-oldest-semen-still-viab...

Maintaining nutritional content isn’t a major hurdle.