The fate of many nerdy interests: you want it to become popular and widespread. Then it does, and you realise you've lost control of it and it becomes commoditised. So went comic books, goes tech.
Now everyone plays, watches or at least knows games, but most games are lowest common denominator focus group tested commodity crap. Huge budgets and production value, almost zero innovation. Even indies are 80% slop to make a quick buck.
If you have a hobby no one cares about, hold it dear and close to your chest, and be happy that no one cares about it.
Yes and yes. I've often likened [unpopular] hobbies these days to how Joel tries to hide Clementine deeper and deeper into the recesses of his mind to try and avoid his memories of her from being erased in "Eternal Sunshine of the Spotless Mind". He fails, but somehow, they find each other and start again.