It seams that in The USA ED is a major issue. Circumcision removes 1/4 of the nerve endings in the skin of the shaft, a botched one can cause serious issues.  

The initial reasoning and this is not being racist was the fact that Hebrew women had a significantly lower rate of cervical cancer. So therefore because there husbands being circumcised was the reason. The fact that most of them had only one sexual partner in there life was overlooked. We now know that HPV is the cause of the majority of cervical cancer and multiple partners increases the risk.

 Have there been any actual studies  comparing the European population  who are mainly uncut with the rate of ED. Weight, type 2 diabetes, and blood pressure issues will have to be factored, out.