Amirate and Caliphate

Those who insist that there can be no amirate but there has to be caliphate, and that thus the zakat cannot be collected until there is a caliph are like someone who being told to build a palace to live in refuses to build himself a hut to shelter in while he builds the palace and thus lives exposed to the elements, the wind, the rain and the snow. The fact of him building himself a hut or a small house does not mean that he has given up on the palace, but just that he understands that palaces are not built in a day.
I am not only talking about the Hizb at-Tahreer but also those rigidly doctrinaire Hanafi scholars who say that the zakat cannot be collected because there is no caliph and individuals must themselves give it to the categories who are allowed to receive it.
The truth is that they themselves ought not to celebrate salat al-jumu’ah because it has to be authorised by the caliph, but they do celebrate it anyway.