I don't think it's feasible to address individual users.
I think a good place to start is treating the falsification of data in research studies like fraud, potentially with criminal penalties.
Another avenue is requiring social media businesses to make reasonable efforts to flag health misinformation. If Facebook et al are making billions in revenue off false information, they should have a responsibility to combat it, at the risk of penalties.
"it's worth examining what legitimate purpose giving due process to criminals serve, and how that is beneficial to society"
Nobody is for spreading misinformation. The trouble is determining what "misinformation" is, and who has the power to determine that.