Having unfiltered internet is ITSELF an aveirah, and not a small one. rav chaim kanievsky wrote that such a person does not have olam haba, regardless of whether or not they fall into the trillions of traps that await those who enter, with the flick of one button.
There’s nothing to be dan lekaf zchus. And since when is being dan lekaf zchus a Lubavitch thing? It’s a mishnah! I do it too. But I’m not supposed to put my head in the sand and pretend that unfiltered internet is ok or that it doesn’t lead, invariably, to sheol tachtis.