The answer is yes to all of your questions. We already have full schedules in the upstate. There are plenty of teams but there are teams holding out. Rock Hill also has plenty of teams.
You can defend the AD's all you want but i work with these AD's. I would never name names but they flat out tell me they are not going to start a team unless the district forces their hand. Some districts have already forced the AD's hands.
I live in Georgia and I can say there is very little interest in boys volleyball or girls wrestling. I wonder if the upstate is unique in the amount of interest?
I am not defending the ADs but I understand why they wouldn't create more work for themselves on their own accord. Creating another varsity sport would mean adding administration, accounting, scheduling, academic monitoring of players, etc. to their job with no increase in pay. I don't know many people in any job who would voluntarily add more job responsibility with no pay increase.