It’s interesting that your first language is Russian. It happens to be mine, too. And I would eagerly — without a moment’s hesitation — throw it away for English as a common language. And this despite having studied Russian linguistics and literature at university level and having translated a handful of books into Russian.
If English as a common language was a real possibility, then I might accept it. Not without hesitation, but I think I would. But I couldn't imagine clearly such a possibility, because it is unreal. For example: why someone needs to abandon his/her native language? I personally couldn't just unlearn such a thing.
