Once again, the number 20 million is only a dubious statement of the Ukrainian World Congress and cannot be a “fact”. About the other articles: WP:Arguments to avoid in deletion discussions#What about article x?. If you want to make changes to others articles, start discussions on the appropriate talk pages. Perhaps there have already been discussions and consensus about that. Returning to this article, I would advise you not to accuse other Wikipedians in any kind of sentiment, but to suggest you solution.