https://www.hsph.harvard.edu/news/features/the-big-3-why-pht...
"They’ve been shown to be anti-androgenic—in other words, they decrease testosterone. In studies with rats, it’s been shown that if you dose the pregnant mother, the offspring have defects of the male reproductive tract. There have also been studies in humans that have found anti-androgenic effects on development of the male reproductive tract."
https://www.scientificamerican.com/article/common-chemicals-...
https://www.theguardian.com/lifeandstyle/2015/feb/10/phthala...
There is a mountain of research on these chemicals.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2873014/
"There was also a dose–response relationship between MBzP (the primary hydrolytic metabolite of BBzP) and below WHO reference value sperm concentration. In a recent follow-up study including these 168 men, plus an additional 295 men newly recruited into the study, Hauser et al. (2006) confirmed the associations between MBP and increased odds of below-reference sperm concentration and motility. "