Islam, just like most if not all other religions, has multiple sects and its holy text has multiple interpretations. "Sharia" is not monolithic and can take different forms depending on school of thought. Take the below verse from the Quran for example. The "mischief in the land" could mean treason but it could also be interpreted in different ways by different people.
Quran 5:32
"That is why We ordained for the Children of Israel that whoever takes a life—unless as a punishment for murder or mischief in the land—it will be as if they killed all of humanity; and whoever saves a life, it will be as if they saved all of humanity."
As a Muslim, my interpretation is that Islam emphasizes the sanctity of life, which is a gift from God. In Islam, God grants every human the chance to repent up until death, up to and including for the biggest sin of shirk (i.e. associating partners with God). I don't think the above verse is intended to mean you can go on a killing spree anytime someone offends your religion.
To give an example, the second caliph of Islam, Omar, was one its biggest opponents before converting to Islam. From his wiki page:
"In 610 Muhammad started preaching the message of Islam. However, like many others in Mecca, Omar opposed Islam and even threatened to kill Muhammad. He resolved to defend the traditional polytheistic religion of Arabia. He was adamant and cruel in opposing Muhammad, and very prominent in persecuting Muslims.[23] He recommended Muhammad's death.[24] He firmly believed in the unity of the Quraish and saw the new faith of Islam as a cause of division and discord.[23]"
To Macron's comments, I don't think Islam is in crisis. Muslims are the ones in crisis. Literally facing state sponsored genocide in Myanmar, living in an open air prison in Palestine, facing severe human rights abuses in China and India, and dealing with ongoing racism and islamophobia in "civilized" western countries, including America. Muslims aren't even in peace in many countries where they are the majority, because they have been war torn by imperialist policies (see Afghanistan or Iraq) and/or have faced decades of negative post colonial impacts including from but not limited to plunging and looting of valuable artifacts and resources, creation of hasty withdrawal maps leaving nations bitterly fighting for decades (see Kashmir), carving and splitting the same ethnic groups into different countries, and installing and backing ruthless dictators that have or continue to terrorize their populations for decades. All of this breeds extremism.
