The desensitization point is real, but I think there's a structural reason the opposition is quieter now: the costs are still abstract for most people. Vietnam had the draft. Iraq had flag-draped coffins on the news. This war's price tag gets absorbed into inflation numbers that feel like background noise.
What's strange is we actually have better tools to make fiscal costs legible now. Every dollar spent bombing infrastructure is monetized debt — real purchasing power extracted from everyone holding dollars. That used to require an economist to explain. Now anyone can feel it at the grocery store and trace the line, if they're looking.
The opacity isn't technical. It's attentional. And you're right that more digital hasn't meant more aware — it's meant more stimulated and less focused. The information exists. The will to sit with it doesn't.