I wonder what degree of tolerance or latitude is shown towards atheists or agnostics in Saudi Arabia or other predominantly Islamic countries.....

Such irony! They are able to criticize the head of the government because the society values liberty and free speech - the exact thing they are fighting against. China has conducted atrocities on so many innocent Muslims. Do you see anyone of significance from the Ummah utter a word of protest? Why not? Of course, freedom of speech and individual liberty are not exactly enshrined in the Holy Quran.
Muslims are great people of course, but mostly they suffer from the cancer of their psyche, called Islam. Islam takes advantage of the democratic apparatus to protect itself against reforms whenever it forms the minority. This is what we see happening in France.

It's like they're saying, "Damn, if anyone is allowed to ridicule my religion, everyone may realize how ridiculous it is?"

It takes a prize idiot to mistake the defence of laïcité as being an assault on Islam.

Boy did they go to the wrong civilization!
Even extra liberal France is a Capitalist system and I hate to break it to Islam but...
there's no profit in their prophet.

They can "request" all they like but Macron is not going to stop. Unfortunately when you don't include your fellow country men and women in how to fix a problem it will not go away.

‘Islam is being hyper-politicised in France, but Muslims are not part of the debate’

[france24.com]