You're an idiot.
The issue isn't "which version of bullshit hocus pocus is believed", it's extremists and evangelists of any religion.
In the case of certain sects of the Muslim population, there is a sad truth that many of the religious leaders are encouraging radicalization and violence. Just like with extremist Protestant groups. Both of these need to be targeted for deletion. That fact that you kill in Jesus' name rather than Muhammad's doesn't make you any more righteous. You both need to be stopped.
We're fortunate that today very, very few Catholics are radicalizing people and pushing them to violence. Historically, they've been among the worse of the worst. If Catholics can move more towards a moderate, accepting religion then that's good for a huge chunk of the planet.
Unfortunately, Protestants and Muslims are both a massive problem. Too easily are whackos attracted to these religions, because they are fundamentalist and literalist in their interpretation of the scrawlings of the relevant madmen.
In the case of the protestants, we're quite lucky that most of them live in the middle of the goddamned desert and simply ferment a hatred of their federal government and shoot people who come on their land. It could be a lot worse. Sometimes - all too often, in fact, - it is worse.
The protestants don't own a whole country. They are tempered by their fellow citizens. But more than enough times they have pushed for unholy havoc to be wrought on their religious rivals.
Sadly, the Muslim radicals have more power at the moment. That makes them a more immediate threat...but it is only the immediacy of the treat that is different. Given enough time, the fringe Protestants will be riding on tanks killing the non-believers too.
Any religion that views killing those who are different as not only okay, but justified needs to be brought to an end. Fortunately, it's typically the radical elements of a religion that believe that...not the mainstream.
Unfortunately, making a dent in the fact that people believe in s ridiculous sky fairy at all is taking forever. We need to push back against all religion. The fewer people who believe in sky fairies of any kind, the fewer will become radicalized on the name of one of them.
Instead, let's teach compassion, acceptance and critical thinking. If you want to believe in a religion, that's fine...up to a point. You can believe lies if you wish, but the instant you advocate - or attempt - the restriction of the rights of others in the name of your religion, the rights to advocate and practice your religion need to end.
Regardless of whether the sky fairy you worship is Jesus, Mohammad, Yaweh, or Barney the motherfucking dinosaur.