"Tom's been having a bit of trouble with words these days.

1 - Riding rockets and the preparation is dangerous."
So, is riding a motercyle, or even riding a bicycle on same road as cars are on.

"2 - People make their choices."
They must, no one else can.

"3 - Sometimes it is plain stupid to not take precautions. Grissom, White and Chaffee were killed by stupidity, not by any inherent danger in space travel."
It's always plain stupid not to take precautions- life is unpredictable.

"4 - When a tragedy happens, it is a tragedy. So what if they made a choice? Still a tragedy."
I assume you are using "a tragedy" is same as the word "death". In this regard "choice is everything".
... "Hard to understand when you're in the middle of some macho circle-jerk, I suppose."
Women also want the right to choose:)

"5 - You guys with your "the hell with 'em, they made a choice" are ridiculous. (Sounds kinda bad, doesn't it. Tell the widows and widowers, the mothers, fathers, children, taxpayers, "It's not a tragedy, no reason to be safe, they died happy, doing with they loved, don't be sad, they made a choice. It's wrong to selfishly regard yourselves as suffering a loss, they made a choice!!") Silly."

I'm wondering "how" anyone can go to war in your world?