A Relevant Point posted here on why Muslims perceived even cartoons as a threat and will kill cartooners and those who deal with those cartoons;
viewtopic.php?p=475837#p475837
A Muslim is one who had entered into a divine contract [covenant - ميثق "mithaq" root, Waw-Tha-Qaf ] with Allah who promises eternal life in paradise, eternal erection, 72 virgins, and all other goods.
The obligation of the Muslim within the 'signed' contract is to submit/believe and be a slave to Allah and accept Muhammad is the final messenger and thus have to comply with all the terms of the contract, i.e. all commands of Allah in the Quran and the authentic Ahadiths.
One of the most critical terms of the contract and Muslims obligation is his duty to kill non-Muslims if there is the slightest threat [fasadin] to the religion of Islam. This is why even the drawing of
cartoons is perceived as threats to Islam and cartooners are killed

.
In addition those Muslims who strive [jihad] to kill non-Muslims and are themselves killed to protect Islam will be highly rewarded many folds than ordinary Muslims when they reach paradise after Judgment Day.
Therefore as long as the contract [mithaq] is effective, there will be Muslims looking forward to their eternal life and 72 virgins and any threats to such promises will dealt with deaths to non-Muslims. Since Islam is so sensitive to anything negative [even cartoons] as a threat to Islam, there will be terrible killings, violence and evil targeted at non-Muslims. This is so evident since the emergent of Islam 1400+ years ago.
Thus rational and logical the most effective solutions to deal with the terrible evils from Islam is to get rid and suppress the ideology of Islam so that there are no contracted-Muslims who are obligated with a duty to kill non-Muslim in the name of a religion.
At present, the majority of people cannot survive sanely and reasonably without a religion as a psychological crutch, thus existing Muslims deprived of their religion of Islam should be encouraged to covert to Christianity and other religions which are overridingly pacifist.