Aren't most of those already down at min wage? At least a proportion of waiting jobs will be going away too.
Can they absorb another 10m (or however many there are) truck and van drivers who probably made quite a bit more? I know it won't be overnight, but it seems to be rapidly becoming a political rather than economic question.
Like must we learn to run at 20-25% unemployment instead of <10? We'd probably have to learn to stop viewing them as scroungers too and adjust welfare somewhat.