Not all Muslims are killers. I'd go so far as to say a majority of them aren't. But yes, their theology does at its core inspire violence.
Right. Islam is a useful tool for those who wish to use the controversy surrounding it and play belief systems (religious or otherwise) against each other in order to create discord in places that are seen as obstacles to world conquest.
Compare sharia law with western values and what you have is a series of disasters waiting to happen, even if those catastrophies are only false-flags. I'm betting that a lot of people that the media refers to as Muslims either don't exist or aren't really perpetrators (or Muslims for that matter). The stigma (encouraged by certain branches of the media) holds in the west that Muslims are violent and warlike by default when what is actually happening is, well, things like Saudi-backed "terrorist groups" are also being backed by western government, the stigma serving to cover up the fact that those groups are motivated by profit and not so much religion - for example, ISIS being to blame for so many crimes under the Obama administration when the reality is that the administration needed them to do their dirty work, keeping them out of the spotlight.
Such prejudices get played against each other a lot. Black lives suddenly matter again at a time when most of America has moved past the race issue (at least to the extent of it causing violence).
This isn't to say that the Islamic belief system isn't wrong, it is obviously, but Islam is not the enemy here as much as the love of power and profit. Divide and conquer.