The Center for American Progress included this eye-opening graph in a recent report.
You're not misreading that: more Americans have been shot to death in the US in the last 25 years than have been killed in battle… ever. You can read into that statistic whatever your personal politics wants you to, but one conclusion is unavoidable: that's fucked up.
To be fair, the number of soldiers killed in war refers specifically to people killed on the battlefield – the number who've died generally in war is higher (about 1.1 million according to the Department of Veterans Affairs). But at most, that lowers the WTF quotient by 4%.
This chart comes from a report by the Center for American Progress. Titled "Right of Reagan," the report describes how the current Republican presidential candidates mythologize Ronald Reagan as a conservative icon, while their policies are actually much more radically right-wing than his ever were. For one, he was willing to stand up to the NRA, enforcing background checks for weapons despite their objections. If not for that, imagine how much worse this graph would look today.