Conspiracy theory (Jesse Ventura’s TV show) seems real. He mentioned this about 3-4 years ago that how youths are being deprived of their manhood through food, vaccines and medicines.It is not a secret you can google it. I can not say about drs but to think that Pharmaceuticals are not aware of effects of 5Alpha reductase inhibitors is highly unlikely. Effects of 5AR inhibitors are well documented. Pharmaceuticals know for long time that inhibition of 5AR will leave permanent effects on men and women.
for example gossypol is 5ARi and is found in Cottonseed oil. It is well known for its side effects. Some men remain infertile after using cottonseed oil.
ncbi.nlm.nih.gov/pubmed/2516506
malecontraceptives.org/methods/gossypol.php
How long does it take to reverse?
Lack of complete reversibility was the second major concern raised by the Chinese trials. Some men in those studies remained azoospermic after stopping treatment. The longer the men had taken the gossypol and the higher their overall dosage, the more likely they were to lose part or all of their fertility. Various studies reported between 5 and 25 percent of the men remained infertile up to a year after stopping treatment. A long-term follow up study of men who had taken gossypol showed that 61% of the men regained normal fertility with “a median recovery time of 1.1 years” (Meng 1988). However, 22% remained azoospermic after 3 years.
Dr. Zhi-Ping Gu’s (2000) trial of low-dose gossypol is the only study to report no incidence of lasting infertility. The highest cumulative dosage taken by men in Dr. Gu ’s study was 36 grams over 18 months. Dr. Coutinho ’s (2000) low-dose trial used a different regimen and found that 20% of the men remained infertile 1 year after stopping treatment. The highest cumulative dosage taken by men in Dr. Coutinho ’s trial was 44.8 grams over 14 months. If Dr. Gu ’s trial had lasted longer, it is possible that the study participants would have experienced similar rates of lasting infertility.