This is just persecution for persecution's sake, I would suggested. I have long been involved with ex-service people over the years and the overwhelming majority are sane, normal people. A tiny minority suffer from PTSD, a smaller minority end up take it out on their families and society around them.
What has long been missing is a "period of adjustment" after a tour in a conflict zone ends. I have long believed that one of the reasons why returned service men from the world wars and Korea generally adjusted well to society was because it generally took them about six weeks to three months to get back to Australia after the end of their tour or conflict. Under military discipline these allowed them to adjust to "normal life".
With Vietnam, there came a "quick turn around" - kick them out as quickly as possible and get them back into civvie street for the conscripts. The nature of the conflict had changed - from one where you faced a readily identifiable enemy to where the enemy lurked in the shadows. The quick turn around was shown to have problems associated with it. The Australian Army long believed in the rotation of units, rather as the US Army did, individuals, between tours. This was to their advantage because
esprit de corps kept the men together and the unit as a whole knew when it's time was up.
Since Vietnam, the day of the conscript is over and done with and today you have regular (and to a lesser extent Reserve) personnel, so individuals have the unit to rely upon. What is lacking is after they retire, when they are out in the civilian community, without the support the unit provides. What we should be doing is providing a "period of readjustment" and support after they are retired. There is no need to isolate personnel.