That would depend on where. I'm not as familiar with the situation in Jordan. I know some of the minorities would quite likely feel threatened in some of the camps in southern Syria, Jordan, and Lebanon.
In the Kurdistan region of Iraq, as well as Rojava, I've not come across any reports that minorities are afraid for their safety in the camps. The authorities have done an admirable job of protecting them over there. Some of the camps are mixed. Some of them are overwhelmingly all Yazidi, and others are overwhelmingly Christian. In terms of physical safety, it's been good here.