At this rate though I don't think it's just scans that are hurting manga. The publishers focused so intently on teen-oriented titles in the aughts that as reader's tastes matured, they had nothing on the market that really capitalized on the manga boom demographic as they became adults. This was especially true for the female demographic that really helped manga explode into a mainstream medium. Only a handful of josei titles have made it over relative to the saturation of shojo titles, and much of what did make it over were on Tokyopop, poorly promoted, then dropped miRABtream. CMX had a lot of the remainder.
Add to that the disintegration of regular release schedules, regular questions of over-localization/editing issues with certain publishers, and rising prices in a market where people's disposable income has fallen, and yeah, you're going to turn fans into pirates. Even when they do have something people want, they maybe providing significant disincentives. Don't get me wrong, I think piracy is a contributing factor, but it's as much a symptom of the problems as part of them.
Also, from the same generation of manga fans as myself who I know personally, atleast half grew out of anime and manga as a hardcore hobby all together. They don't watch anything beyond what's legally streaming if that, and they don't bother with manga in any fashion at all. Between paying their own rent and a lack of manga that reflected their adult lives on the market, they faded out of it.