If they really offend you just avoid reading/commenting on them.
This is exactly why I come back to
Some days I'm in the mood for a debate, and some days not. I can choose to click through to the comments if I'm in the mood , read the summary or (gasp) click through to TFA if I want the less-debated viewpoints.
And for debate, compared to some of the other places on the internet, I can't find a community better then