I see it as top comment, where is the echo chamber?

I think downvoting unhealthy positions doesn't necessarily cause an echo chamber. Is it really necessary to address every irrational, stupid, inciting, ... posting? Is really every opinion worth being respected? I don't find the op offensive but it's been repeated here many times over - does each copy need a rebuttal or response?

Everyone is entitled to their opinion but I don't believe in the mantra that everyone's opinion matters equally.