He's not a philanthropist for chrissakes.
He's a businessman/employer.
His company broke the law, and Trump personally failed to support an active duty military reservist. Both of those assertions are indisputable.
This may be a theoretical argument for you, but when you're the military reservist who's career was sidelined or ended because you chose to serve, when others chose to avoid physical danger, and profit personally by doing so, it's a whole lot more significant situation. Let me reiterate: A veteran commercial pilot who loses his job during an airline merger will be lucky to be flying a crop duster, due to the priority of seniority within the commercial pilots union. He certainly WILL not be returning as the left seat plane commander, with his choice of aircraft and routes, and veteran pilot pay.
THAT is what Trump stole from this USAF reserve officer. This military pilot personally suffered for serving his country, and it happened at Trump's hand.
Trump could say "Hey, we screwed up, that's not how I personally feel about reservists, and I'd fire any manager of my company who did this again.", and he might have a bit or credibility. He won't say that. He wouldn't have done anything different, other than perhaps call the Colonel "a loser".
THAT is Trumps history. THAT is who Trump is.Arguments to the contrary are not based in logic or historical fact.