Washington - American white supremacists expressed concern on web forums on Sunday that a mass killing at a Sikh temple in Wisconsin might hurt their cause.
Analysis by the Site terrorist monitoring service of extremist online chat found commentators gloomily predicting that the attack would strengthen the hand of minority groups and gun control advocates.
"This isn't good folks, no matter which way you slice it! Damn," declared a web user posting as "Proud White Chap" as news broke of the shooting, in which six people plus the shooter died.
"I fully expect Jewish, Black, Latino, Muslim and Gay special interest groups railing against our right to guns," he predicted, adding: "All because of some mental case or buffoon nitwit."
Police have not identified the suspect but say they are investigating the attack as a possible case of "domestic terrorism", amid suspicion Sikhs were targeted because of their faith or because they were mistaken for Muslims.
"Now this will fuel liberal BS on all fronts," raged "JoeyJoeJoe" on the Stormfront "white nationalist" forum.
More intelligent than 'Muslims, blacks'
"We'll probably hear how he thought they were Muslims and went on some rant. GOD DAMMIT. I'm sick of these God damn idiots ruining the reputation of our race," he complained.
Stormfront member "whitehouse90310" warned: "This was a BIG mistake if white nationalists were involved. Let's hope they are white Muslims."
Another commenter, dubbed "glord", wondered: "And why the hell did this cretin go for Sikhs?! They are not a major problem, they are relatively few in number, peaceful, don't cause whites any problems.
"They are also a lot more intelligent than Muslims and blacks and do not deserve this," he declared.
Many commentators expressed concern that the media - which one dubbed "the Jew media" - would use the killings to tarnish white activists and push for firearms to be confiscated.