@Tiffany-Amber0
It seems like you sent a Reservation Request declined by the Host.
Unfortunately, Airbnb can't force a Host in this case. So they did the only thing they can do which is suggest other listings.
Airbnb would only take action in such cases if the Decline raises a question of discrimination as per ToS.
The only potential sanction on the Host in 'Decline' is if it's done repeatedly, in which case Host receives automated warnings about their Acceptance Rate.
Consequently, if you can't reason with the Host, then just take Airbnb advice and move on.
If there is anything I've overlooked, other contributors will highlight it.