Here's some advice for you Dougie: You should treat Chris Matthews the same way Progressives treat Limbaugh, Hannity, et al.
Ignore them whenever possible. When Regressive Rightwingers make ridiculous comments about people that crossover into the MS news, we first ridicule them, then ignore them. Newscasters, talk show hosts and celebrities do not speak for the vast majority of Americans -- only for themselves.
To be honest: No one considers Chris Matthews or David Sirota a "heavyweight." De-bunk them calmly and with some sense of class (if you can muster it) and YOU'LL come out looking like the winner instead of them all the time.