economic rat

It just doesn't make sense to me:

Mr Howard hopes small to medium firms will have a new incentive to hire labour after removing the right of employees to claim unfair dismissal in businesses with fewer than 100 employees.

It's not logical. Either you agree with this right and you think it is fair for all employees to have a right to claim unfair dismissal, or you don't. How can an employee have any less access to this right just because their employer employs less than 100 people? You have the right to be treated fairly. How can that be variable across employers?
Either 'the right of employees to claim unfair dismissal' is universal, or you're taking it away from some Australians in order to privilege a section, a part, an interest group, namely 'small business owners'. Or?