The UK has just spent tens of millions of pounds dropping highly sophisticated weapons on Syria's chemical weapons facilities in defense of helpless citizens. Not one person was injured or killed. Not one.
For a few thousand pounds we could have bombed the general area around the facilities with the same strategic outcome. We didn't. Neither did the USA or France.
Contrast and compare with Bashar al-Assad who has, on dozens of occasions dropped barrel bombs of chemicals on his own men, women and children aided and abetted by Putin and Rouhani.
Don't tell me there is any moral equivalence.