Earlier quoted context omitted.
So all Russia and Iran are doing is just trying to defend against ISIS? That's certainly one interpretation I suppose.
At this point, they are trying to support a secular and a relatively liberal (relative to an alternative) regime against ISIS and other jihadis, yes. To see an alternative, take a look at Libya after Gaddafi where there are literally slave markets in 2017.
We're talking about the al-Assad ruling family? The same family whose literal policy is to raze towns that shelter any opposition, and are currently literally gassing their own citizens?