I’ve had serious differences of opinion with Media Matters blogger Eric Boehlert in the past, but his latest piece on the desperately absurd efforts of the right wing blogosphere to label Pentagon shooter John Patrick Bedell as a “left winger” is right on the money: The Pentagon shooter, insurrectionism, and right-wing bloggers.

On the one hand, right-wing media love mainstreaming vile, alarmist, anti-government rhetoric. Yet they’re also hyper-sensitive to the charge that they’re, y’know, mainstreaming vile, alarmist anti-government rhetoric and might also be goading some crazies into action. Consumed with Obama Derangement Syndrome, ‘wingers literally cannot help themselves. Just this weekend, one prominent, albeit unhinged, right-wing site branded Obama as “suicide-bomber-in-chief.” They’ve removed all sensible filters, which means the crazy talk flows 24-7.

Similar to the problematic birther brigade, the right-wing’s crazy uncle who keeps showing up at public functions, radical insurrectionist rhetoric (i.e. war may have to be waged against the government) has been unleashed into the far-right masses and there’s nothing that supposed leaders can do to contain it. They can’t limit the violence that it continues to set off, either. Instead they scramble, like after last week’s Pentagon attack, to shift the blame to the political left.

But the clumsy scapegoating doesn’t work for obvious reasons: There are no major American liberal players, in media or politics, who today routinely preach the need to take up arms against the federal government. Conservative blogger Erick Erickson certainly couldn’t point to any in his laugh-out-loud funny rewriting of history, in which he dutifully absolved the right-wing of any responsibility for anti-government violence, and instead blamed liberals. …

Bloggers also pointed to the fact that Bedell was reportedly a registered Democrat as more proof of his allegiance to the left. But that doesn’t make much sense, either. Are bloggers really suggesting that no registered Democrats have attended anti-government Tea Party rallies this year? Haven’t Tea Party leaders been bragging about how they’re attracting a wide range of disaffected voters? And in fact, haven’t Tea Party leaders been stressing how wrong it is to assume the movement is synonymous with the Republican Party? But suddenly a distant political registration proves all.

For the record, I’m not suggesting that Bedell was a dedicated Glenn Beck fan, or that Rush Limbaugh made him do it. I think the specifics of this case are too muddled for those kinds of conclusions. But the idea that panicked right-wing bloggers can turn Bedell into a tree-hugging Greenpeace activist is ludicrous. The allegation doesn’t withstand scrutiny, simply because dangerous, anti-government rhetoric is not part of today’s liberal dialogue.

It is however, a proud cornerstone of the conservative one.

Unfortunately, very true.