Kathryn, I feel your pain. and I love the your term "helpless entitlement."
I know a LOT of people - and political figures - right now that create a lot of suffering because of it, just not their own.
I am an Airbnb SuperHost with 29 five star reviews - all from a very unique destination with no running water or electricity.
I have been very lucky to tap into the "Glamping Groups" and have found a way to create Transformative Travel with very little.
My guests have been remarkable, all of them, and my efforts appreciated. Then came my first "Environ-Mental-ists."
My version of "helpless entitlement" was a group of four 20-somethings that created a lot of chaos prior to arrival, showed up 3 hours after their confirmed arrival time on a Friday night, which ruined the plans I had, and completely trashed the place, literally leaving food out, plates in the woods, bedding on outdoor furniture in the rain and burnt marshmallows still on sticks on the furniture in my cottage. The blind could have cleaned better, and probably cared more. I was furious, not to just have all this additional work to do, and the destruction to my place, but the level of disrespect they showed me and my sacred space was most hard to grapple.
So here's what I did and it might be your best move as well.
1 -Don't write a review, theirs can't get posted if both host and guest don't both write reviews, therefore keeping the bad review they are sure to write, off your listing.
2 - Provide specific feeedback directly to airbnb on what horrific guests they were and go into detail. This is only info airbnb will receive and will help other hosts avoid a hellish experience down the road with the same group. We thank you in advance!
3 - Tell them directly via text how appalling their behavior was and remind them of the level at which you tried to accomodate them, and be done. Telling them how you feel without getting into a sparring match will make you feel better and keep an unwarrented bad review off your listing.
Then, be prepared to ingnore their response, no matter, because at this point, you've stopped caring about what they think.
Hope this helps - Cheers!