"The adequacy of systems depends on the adequacy of the principles they contain. Yet, there is not a single principle in Islamic Sharia that can be criticized as 'inadequate.'
If we could properly present just a few of the fundamental tenets of Islamic Sharia here, we would reveal the extent of the ignorance and hollow claims of some Muslims(!)."

"A human-made system relies solely on reason and draws all its inspiration from customs, traditions, and society. This is extremely bad and atrocious. For if bad habits and corrupt traditions prevail in a society, then these become the source of human law, which necessitates that the human order itself be as corrupt and rotten as its source."

"In fact, Islam never permits the removal of religion from state life. Because in Islamic Law, the state is a part of religion, not its opposite...
Therefore, in the eyes of Islam, there cannot be a religion without a state, just as there cannot be a state without a religion.
Undoubtedly, the Islamic order, which touches every aspect of life, is never compatible with the principle of secularism. In other words, it can never consent to being valid only in the realms of faith and morality, while a secular regime reigns in other spheres. Because Islam is both faith and morality, as well as governance; it does not accept fragmentation.
According to the Islamic understanding, obedience is rendered only and solely to Allah, whether in matters of morality, worship, or administration. Otherwise, it would be to associate partners (shirk) with Allah."