These are allegations and why people say Islam is not a religion of peace:
1) Verses in the Quran that order to kill.
2) I was watching a video by David wood called the Quran in context were he apparently shpws even if you look at the context it doesn't make a diifrence and the Muslims are agressive.
3) Terrorism and militant groups
4) Hadiths about killing e.g. killing of apostates.