> Putting up speeding cameras on public roads is not “unlimited surveillance” or “cameras everywhere”

Not by themselves, but public roads are a huge portion of everywhere when you look at person-hours spent in public.

Street corner cameras are also neither unlimited nor everywhere. But the combination of those two gets extremely oppressive.

Even just one is enough to track almost all your movements. Everyone's movements are not supposed to be in a database somewhere just because they moved through public spaces. And sure lots of those cameras are not centrally connected today, but the "it's public" argument allows it just fine.