"We got too many gangsters doing dirty deeds, too much corruption and crime in the streets. It's time the long arm of the law put a few more in the ground. Send 'em all to their maker and he'll settle 'em down. You can bet he'll set 'em down."
"The KKK took my baby away" -- The Ramones
For those that don't know their history, this was the song Joey Ramone wrote about Johnny Ramone after Johnny stole (and then married) his girlfriend.
Not really conservative, I just really like the Ramones.
Don't know if that qualifies as a rock song. There are a lot of country songs that could go. Notice for Stand By Your Man they cited the Motorhead version.