Of course these calls are matters of interpretation, but I really don't think you're correct here. "Welcome to $foo" is a snarky way of conveying that you know all about something while the other person is ignorant and doesn't even know the basics yet. When $foo expands to "your country at war", that is a really, really awful thing to say.
Suggesting that exizt88 should "welcome" this war is indistinguishable from nationalistic flamebait. The point about government involvement was already addressed in their previous comment. The basic argument that government decisions have unintended consequences is valid, but could certainly be made in a more polite and respectful manner.
These are the consequences of the decisions made by exizt88’s government, it is not unfair to point this out. Nobody is blaming him.
E: How could this comment possibly deserve to be flagged?