If Linux ever becomes used by my friends that movement will be driven by big techs or governments. Our voices aren't a big factor and we should admit that so that we spend time better.
The same could be said for vegetarians and vegans at some point but about every year i read that meat consumption is down a few percent compared to the previous year in Germany. A single person switching OS doesn't matter. Getting others to switch who also get others to switch is in the long term changing things.
Linux adoption would probably take hold if it was advertised, but it's not the thing the linux community wants from what I've heard and I don't think our voices are useless, especially with the Sony incident