@Lorraine303 " I’ve told the guy that booked his young guys stay that if things do not improve, I want him moved out.... and it still hasn’t improved much." Unless this was an employer booking for an employee under a business account, this is a 3rd party booking, which are against Airbnb's TOS and you should not accept any of those. They are often problematic, regardless of the guest's age or gender, because the booker hasn't bothered to send the relevant house rules or anything else to the person they are booking for. Also, you won't be covered for issues with 3rd party guests.
As far as the young guys go, I blame their parents for never teaching them how to behave properly, clean up after themselves, how to operate washing machine, or wash dishes. About all you can do if you get bookings from young people (and young women can be as messy and clueless as young men) is to impress on them when they book what your house rules and expectations are and again when they arrive, making it clear in a non-threatening way that if they don't respect them they'll be asked to leave.
I've actually hosted quite a few young men in my home-share and I've been pleasantly surprised that almost all have been clean and tidy. One floored me by leaving his room and bathroom so immaculate it didn't even look like anyone had stayed in there for 4 days- he even made the bed perfectly. Someone trained him well 🙂
As far as your current guest, seems like he's already been given ample opportunity to change his ways and I doubt anything will change, so depending on what the response is from the booker, I'd probably be talking to Airbnb and getting him out.