Male infertility after 60 is probably not very impactful from a selective point of view. For 300 000 years, almost nobody reached 60 anyway.

Before. Now people are delaying childbearing. Anedacta, past year one of my work colleagues had its first child, at 62.

And delaying childbearing decreases fertility probably more than anything.

The article sort of mentions this in passing, but doesn't subject it to much rigor, and the (completely obvious?) counterargument is that by the time it causes male infertility, the affected have already reproduced.