yes, if you are from an english speaking country you probably don't have issues,
I work with the most popular stack and still have very few opportunities, but poor networking skills definitely also play a role ...
I'd actually say that working with the most popular stack could be the reason you don't get many opportunities - because you have so much competition. I work with Clojure and 8 out 10 CV's I send result in interviews, and I've never looked for a job more than a few weeks tops, simply because there isn't a lot of competition. I'm from Estonia.