@icedcoffees
The thing is, as much as I hate to say it, I don't think rescues themselves help the situation.
They make it almost impossible for anyone to rehome and so people resort to dodgy breeders and online ads.
Dogs Trust reported they've rehomed over 5,000 dogs so far this year, but in one month had 20,000 rehoming enquiries.
Dogs are being rehomed, but a lot more are being signed over with complex behavioural or health issues. As others have said, there's a lot of dogs waiting "in the wings" so to speak as they're not ready to go to a new home. Or those that are ready, have quite specific needs. I've seen so many young dogs being signed over because they're boisterous or have resource guarding issues - and then rescues get moaned at for not rehoming to families - that kind of dog should not be around young children. Sigh.
Rescues shouldn't be the ones getting it in the neck for being cautious about rehoming their dogs. Their priority is to find each dog in their care the right home. Their priority is NOT to supply every applicant with a dog.