They will use them [ISIS] against us. The task of the West, America, Europe is to destroy our state. They have already tried to do this through the Chechen Republic, through Ossetia, Georgia, and Ukraine.
This is a conspiracy consistent with recurring pro-Kremlin disinformation narratives on Western belligerence towards Russia and it is also in line with the previous narratives accusing the US and other Western countries in supporting and using jihadist groups to advance geopolitical goals. The US-led military campaign in Syria has been fighting against ISIS and other Islamic terrorist groups along with the Global Coalition Against Daesh. Background and a similar case can be seen here and here. The policy of the US or the EU is not directed against Russia or any other country. See similar narratives here, here, and here.