(opinion) Don't buy the bluff. Here's the truth about no-deal Brexit

[Denzil_DC]

19. They're free to disagree. It's still not persuasive.

From your link (my bold):

Overall the report breaks little new ground in terms of fresh evidence but says the picture remains incomplete. “The allegations that have emerged of Russian interference prior to the Brexit referendum are all the more stunning given the innate resilience within British society to the Kremlin’s anti-democratic agenda,” the senators wrote.

The dark money ploughed into the Leave campaign certainly deserves more attention (and Russia isn't the only alleged source). But it and the likely exaggerated effects of social media are utterly dwarfed by the decades-long drumbeat of mainstream media propaganda, a not insignificant proportion of which was instigated by Boris Johnson to pursue his own petty, self-seeking, irresponsible agenda.