I'd say leave it be. If you don't like the thread, or aren't interested in it, then don't read it.
The mods mostly keep on top of things, and while I'll admit it gets pretty intense at times, it's because politics stirs strong emotions because it affects every aspect of our lives.
I do feel it's an echo chamber at times but I think that when a government is widely seen to be underperforming or blatantly corrupt (allegedly) then there tends to be vocal criticism. It's all aimed at the right because they're in power.
I shot just as much criticism at Blair and his mob as I do at the Tories, well nearly anyway so I don't think it's a left/right thing at the moment, it's simply those who are pretty content with life, and those who want to see changes
It'll be a shame if the topic didn't have a home as it does keep the subject mostly separate from everything else.