You made a claim, gave zero evidence whatsoever for that claim, and the grandparent response included a retort with at least a mention of anecdotal evidence. Now you’re getting pissy because they didn’t provide a study?

We’re talking about defined treatments and FDA approved drugs/treatments. HCG is approved for males for hormone replacement. Its up to the poster to prove the FDA is incorrect.

heres study on sperm production which is directly linked to t levels.

Conclusion: The most suitable option with the current data available is hCG with or without hMG/FSH. Testosterone supplementation should be avoided, but if they are already on it, it is still possible for a return of normal sperm production within 1 year after discontinuing testosterone. Ho CCK and Tan HM. Treatment of the hypogonadal infertile male-A review. Sex Med Rev 2013;1:42-49.

https://pubmed.ncbi.nlm.nih.gov/27784559/

I'm not a fan of "data is the plural of anecdotes".

But if we're talking about deciding whether a bad outcome can happen:

A few credible anecdotes are sufficiently convincing on this question.