I don't think that Chips' post should be deleted, even though it's clearly posted from a position of ignorance.
Firstly, as others have said, it is an example of the freedom of speech so many served to maintain, and continue to serve.
Secondly, it should be left as a reminder to all of us that even when we disagree, we should show civility to all.
In my experience people who spout the 'they're only doing a job' thing are often embarrassed because they know they wouldn't be able to do it themselves.
Perhaps Chips is from one of very few families who were not affected by conflict. As well as all those who died, I shall be remembering my relatives who served:
Cpl, Grenadier Guards, WW1
Maj, Royal Fusiliers, WW1 (MC 1918)
2 x 2 Lt, East Yorks Rifles (KIA)
Vice-Admiral, RN, (KCMG 1916)
WO, RAF, WWII
Fg Off, RAF, Aden
FS, RAF, Malaya
Never forgetting my friends and colleagues who continue to put themselves in harm's way.