This is painful to read. Manipulating and making up numbers, reclassifying demographics ("teens" vs 20-year-olds), and then concluding that we should "concentrate all of our research and political energy on how marijuana affects driving" even though a study was quoted that "increased availability of marijuana is actually associated with decreased car accidents."
Agreed. This is the kind of op-ed that poses as hard science, or at best, scientific journalism.
The opinion of the writer is pretty obvious, which is really okay, but it is framed as "research", and a set of conclusions he arrived at, rather than began with.