The whole point of the previous post is literally that one law (prohibition of "inciting a riot") is unethical, so the claim that they're saying that "all laws are ethical and just" is simply absurd.
See 'unlawful', which is difficult to unpack to "some laws" or worse "not all laws", agree?
Along these lines, my point was that racism, bigotry, homo/transphobia is a cultural byproduct of an accumulation of speech and text that may be politically violent.