Strangely it seems, and I think research has proved, that the OK Corral shootout wasn't a case of drunks rejecting authority, but was the result of a long standing disagreement between the cowboy workers (Democrats) and the business owners (Republicans) in the area, and the reason for the somewhat disingenuous statement on the marker. Some things never change.

"The ranch owned by Newman Haynes Clanton near Charleston, Arizona was believed to be the local center for the Cowboys' illegal activities. Tom and Frank McLaury worked with the rustlers buying and selling stolen cattle. Many of the rural ranchers and Cowboys resented the growing influence of the city residents over county politics and law enforcement. The ranchers largely maintained control of the country outside Tombstone, due in large part to the sympathetic support of Cochise County Sheriff Johnny Behan, who favored the Cowboys and rural ranchers, and who also grew to intensely dislike the Earps. Behan tended to ignore the Earps' complaints about the McLaury's and Clanton's horse thieving and cattle rustling. As officers of the law, the Earps were known to bend the law in their favor when it affected their gambling and saloon interests, which earned them further enmity with the Cowboy faction." per Wikipedia