I am Jake's dad. I hereby publicly apologize for allowing his (Jewish) mom to have a mohel come in and remove his foreskin. If it makes anybody feel any better mine was cut as well, back in 1964. I'm not Jewish, so there was no party associated with my circumcision, just a doctor and nurse or two at the old Ballard Community Hospital (Now Swedish Ballard) in Seattle.
Anyway, I was wrong. There, son, can we move on now? Making Mom and I feel bad may be a NAP violation . . . .
That was rather a qualified apology. Perhaps just acknowledge both Jake's and your own feelings about this, and allow him his process and timing for when he is ready to "move on".
I stopped talking with my father because of my circumcision. In our case it was different, as he cut his foreskin at 26 due to adherences and para-phimosis. I told him I thought neonatal circumcision was a crime and he replied that if I didn't shut up, he would likely commit another crime.
You can not determine how someone else reacts to your actions. You may have thought this was the best for you both, but by your own admission it wasn't. You can't expect your son to move on unless you have returned what you took from him. Now you can only accept his grief, you were the cause of it.