I don't know who Bruce Schneier is any more than he knows who I am. I'm under no obligation to read his past statements and works before I comment on a blog post of his.
What has changed under Trump is that the power is now concentrated in tiny hands that seem particularly like it to abuse it, unconstrained by social norms or political checks.
And what's the evidence for that? Surveillance culture started under Bush and thrived under Obama. Would Clinton roll it back? Both your comment and Schneier's post have that same underlying assumption that Trump will be worse. Why is Trump worse? Why is he scarier?