What interpretation trick? Do you live under a box? Afghanistan was ruled by Shariat under the Taliban, Iran is ruled by Sharia, Saudi Arabia is ruled by Sharia, FATA in Pakistan is ruled by Sharia, parts of Somalia is ruled by Sharia, ISIS rules with Sharia. Each is different but they all have offer no freedom of religion, no freedom of worship, no freedom of speech, no freedom of press, no freedom of education, and the list goes on. If opportunity was given many would move from under their rule. Great advertisement for Sharia rule bro

You wouldn't catch me dead living in any of these places because just like you their interpretation of the Qur'an and Sunna is whack and an insult to Islam and teachings of the Holy Prophet (pbuh).
You still can't provide any sura that states that we as a collective have to be ruled by Sharia.