(Wondering if a married Protestant "bishop" can't "bishop" until he and his wife are able to produce children.)
The thrust of the qualification is that a bishop can't be a two-woman man. Not a womanizer. Just one wife, if married. Historically, bishops and priests that were married could not remarry if their wife died -- and couldn't GET married at all if ordained while single.
If marriage was an absolute requirement, then Paul couldn't have been a bishop. Neither could Jesus. The consensus is also that John (the apostle) was unmarried.