It's a pretty lame point. We're fine with spending on members of the military because, at any point, they may have to put their lives on the line for the rest of us. National defense isn't something you can prepare for after you need it.

There are valid arguments to be made for society banding together and providing health care for everyone. "but the military gets it" isn't one of them.

It's always funny to call it "defense" spending when so much of it goes to wars of aggression.

Still though, government-provided medical insurance is accepted as a perk in this context, where as in other contexts, many Americans express extreme skepticism about the concept.

In this context, the government is the employer. Why are you treating it like a different one?

"We'll fill those cavities (aka teeth terrorists) full of lead!"

IIRC, Bill O'Reilly wrote about this idea while he was getting his MPA from Harvard. Create a universal national health service run by the Surgeon General where all the doctors wore military uniforms. This would radically reduce any big government scare messaging from financial conservatives.