David,
I will quote from your earlier post.
And, as a human, I make my own conscious decisions about morality and I bide by them. Not ALWAYS–as I AM human, after all–but most of the time.
A reference to not always biding by conscious decisions about morality is very different than what you now claim is only incidental exposure to inappropriate material. I apologize for the misunderstanding. Nevertheless, incidental exposure is certainly reason enough to require a filter.
The fact that filters are easily evaded is all the more reason to advocate complete avoidance of internet access, not a reason to forego the filter. At the least, it demands stronger, more difficult to evade, filters.
Chaza”l do say, actually, that one must take extreme precautions in areas of arayos. I don’t fathom how you can compare being on the same side of the street as a woman with having free and easy access to all sorts of arayos on the web. Artificial moral construct though it may be, blocking easy access to the type of tempting material available on the web is an imperative, and I don’t see how one can possibly distinguish this from the Gemara’s imperative to avoid unnecessarily passing an area in which women are doing laundry. Is that not also an “artificial moral construct”?
No, questioning the direction given to us by our gedolim is not heresy. It’s just lacking common sense. (If you’re arguing on Chaza”l, that’s another story, but I’m hopeful that you don’t realize that that’s what your doing).