He killed children.
- "During the sentencing hearing, Forrest heard from the father of a 25-year-old Boston man who died of a heroin overdose and the mother of a 16-year-old Australian who took a drug designed to mimic LSD at a post-prom party and then jumped off a balcony to his death. Prosecutors said the two victims were among at least six who died after taking drugs that were bought through Silk Road."
[0] https://www.bloomberg.com/news/articles/2015-05-29/silk-road... ("Silk Road Mastermind Handed Life in Prison for Drug Bazaar" (2015))
It's squarely within the Overton window to impose extremely harsh sentences for people who sell heroin*. Most (?) Asian countries *execute* people who sell heroin. Trump himself has proposed, multiple times over the years, executing US heroin dealers[1,2]—which underscores the incredible degree of hypocrisy behind this pardon.
*(It's also within some people's Overton windows to contemplate the opposite of this, in a framework of harm minimization. I can't steelman this argument in the specific case of Ulbricht. Is it harm reduction to sell heroin? Is it harm reduction to sell fatal drugs to high-school age kids?)
[1] https://www.bbc.com/news/world-us-canada-43465229 ("Trump urges death penalty for drug dealers" (2018))
[2] https://www.npr.org/2023/05/10/1152847242/trump-campaign-exe... ("Trump wants the death penalty for drug dealers. Here's why that probably won't happen" (2023))
That's very unlikely to be true in the case of the high-school kid who died buying a synthetic drug off the internet. They almost certainly did not have a dealer connection sophisticated enough to sell that. They almost certainly would have lived, if Silk Road were not available to them at that point in their life.
You're advancing an argument about drug markets and personal autonomy in the general case, but it's a very poor fit to the concrete facts in the specific situation we're looking at.
Though I think this argument is tangential to the point on proportionality- Ross's sentence is an affront to justice when considered in the context of the Sackler's treatment