Would people people actually want a dog that bites?

We're trying to rehome our dog. He's a wonderful border collie who has mastered obedience training and knows tons of tricks. He's calm, cuddly, and not at all destructive. He has biting tendencies though. He always tries to bite kids and he often bites at adults that he doesn't know if they get too close to him (and no, its not herding behavior). He's had these behaviors since he was 8 weeks old. He's actually bitten a friend, and had to be quarantined. Recently he bit another friend, but did not break skin this time. He would have bit about 100 more people by now in his life, but we're very careful. He's always been more of a shy biter, but its definitely problematic. We've worked with an animal behaviorist and 2 trainers. Our dog is quite submissive and easy to control, so he definitely knows who alfa is. The trainers both said they believe he's a good dog, but they think the breeder did something wrong to produce a dog like this. We'd keep him, except we're about to have our first baby. We're trying to rehome him, but 2 rescues have turned us down, and we're afraid we'll have to put him down. Do you think there is even a small chance that somebody out there would want a dog like this?