Actually it's more like a small subset of Group A intends to kill us all (highly doubtful that they actually have the capability to actually kill us all).

Group B is using the undeniable fact that some factions of Group A intend us harm to claim that all of Group A is responsible for all the the worlds evils. (The deleted post claimed that Islam was responsible for all the human trafficking in the world for example).

Some members of Group B (the despicable Britain First in the UK) have some completely bonkers beliefs that credulous idiots like the op retransmit without apparently giving them a nano seconds critical thought - e.g. "TEH MUSLAMISTS WANT TO MAKE ARE WATER HALAL" or "TEH AVERAGE MUSLAMIC WOMAN HAS XX CHILDREN - THERE TRYING TO BREED US OUT" (spelling mistakes intentional).

So therefore, while I don't disagree the Islam has some serious problems as a religion and an ideology, I reject as bigotry and narrow minded hatred the message that the OP originally posted.