Because what we have at the moment is not sustainable. Too often criminals, illegal immigrants etc are seen to use this Act (and Legal Aid )at a huge cost to the tax payer) for their own ends. Having their 'human rights' met conflicts with the a large number of other's human rights – how is this equitable?
It appears as a law abiding citizen that the less desirable elements of society manipulate this law to their own ends. If the activities of these people shows a blatant lack of regard for others, if they are not behaving in a way that supports the mores of our culture then they should not have these rights.
We need a government to take a stand and agree some non-negotables for our society. We are like people in the Emperor's new clothes and frightened to speak out and say that actually the way we bend over backwards for every minority group at the expense of the law abiding citizen/ the majority is wrong.