Exposed: The Obama Invasion of Syria

[Jackalope]

That being said, one (and only one) of the factors that make the use of chemical weapons more immoral is that they are impossible to target precisely.

But let's say they used chemcial weapons in such a way so as to achieve the same long term ratio of intentional to collateral casaulty as laser guided bombs targeting urban targets, does that satisfy the qualms?

I suppose it might, however, you're proposing a hypothetical to which I see no practical solution. Chemical weapons are by their very nature unpredictable.

The main thing that makes it "immoral" is it is something of a cheap force multiplier for the other side.

That may be a factor. Any weapon acts as a force multiplier - that is the very purpose of weapons. Chemical weapons are certainly "cheaper" (in terms of attainability) than nuclear. However, I believe that much of the attitude towards such weapons came from the experience of using them (by both sides) in WWI, and we certainly weren't dealing with asymmetric forces in that conflict. I don't necessarily disagree that it's a factor for some, however.