The option of P2F and poor contracts shouldn't even be available. Terms and conditions will now steadily erode from the bottom up. Someone may well be sufficiently desperate to work for nothing, my point is that the opportunity to do so shouldn't exist.
But in the absence of a strong union it's hard to see how the cohesion that possibly could have prevented these schemes would have been achieved.
Whatever your personal views on unions, the old adage of " we all hang together or we'll hang separately" is certainly proving true and biting with vengeance.