Sorry I didnt reply to any of this. I was at work then went strate to bed.
1. We have Tranquilizer Syringes mabey use that?
2. Patreon would probably have a problem. But Subscribstar seems more lenient.
3. Agreed. Hence why I said Pollen laced Blood or perhaps a Blood Patry.
It's also consistent across modern media that Vamps can eat blood from out of a human body as long as its kept alive (blood banks & such) but it's like eating a McD's Burger, not filling & lacks all necessary nutrients. But the vamps also talked about feeding on the Ghouls (hence there absence) which would be un-Dead blood. So we have wiggle room. Vamps might enjoy the addictive taste of the Pollen Blood/Pastry as much as living girls love Special Pastries.
You're proposition is equally a good idea as.
________________________________________________
If the Vamps ever get any form of update there are 3 things I would like to see (I'm gonna list them from most likley to least likley to happen):
-A way to make them horny as discussed above.
-Shorten there pregnancy time from 25 days to 20 days (
all girls used to be 25 before Tink changed it. Vamps were left tho 
)
-Give th Gargoyles a minion role so they can help MC in fights. Like the Goblins.
-Dhampir daughter (
I have written a concept for such a character I'm sure I've put up here before but for the curious I'm happy to re-upload it)