The algorithm would never work if the user had so little choice as to be "injected" with whatever they were shown. In fact we have full agency over whether we are interested enough to listen and trust the arguments, just like any other persuasive message. If not, we swipe up and injection fails.

This reminds me of the exaggerated claims made around subliminal advertising and brainwashing. People love to model others as weak-willed simpletons rather than accept that thoughtful people are persuaded because their perspectives differ.