The public wouldn't buy the 'neutral' aspect, as every mechanism that a platform provides, is in some way biasing the type of content that is broadcast. Twitter's RT feature, which requires no curation or modification of actual content by Twitter, still biases content to that, perhaps, which is most divisive or simplistic. Broadcast technology, even without algorithmic bells and whistles, is already a biased technology. I think we might in-fact agree, but to me, there is no crucial ethical difference between a chronological twitter and a algorithmically mutated one, for in either case, the very platform itself (its existence, its design) pre-biases the type of content that will flow through it, and thus we'd end up with content that would make us consider policing it.
So, in your words, I would say, it is somehow fundamentally impossible for a technology to be "passive".