I see you can very nearly spell "ad hominem", but the underlying meaning of the term is apparently still not quite within your grasp.
than present serious counterarguments
Serious counterarguments are wasted unless there was a serious argument presented in the first place. I do not count "flatten the place," or "create a glass parking lot" as serious arguments, but rather impulsive and poorly considered reactions to uncertain news reports.
or realistic proposals.
There is no requirement to provide serious proposals in response to silly and bloodthirsty rants.
The ones that remind me of Ted Kennedy - you know what they are against, but they never seem to get to explaining what they are FOR.
One thing I'm "FOR" is to not promote stupid and counterproductive ideas. Experience has amply demonstrated that the people who shout loudest about MOABS, nukes, and carpet-bombing, are the least likely to respond rationally to "realistic proposals." Why waste time on them?