Who has not heard the oft repeated mantra that "Irish is a dead language"? The following article, which appears to be one of a series on "coping with anti-irish language opinions", disputes this assertion:
Irish is a dead language - InsideIreland.ie
Irish is obviously not a dead language but it is in trouble.
Very interesting point in the article is that the median number of speakers per language in the world is 7,560. Irish is certainly not alone in being under severe pressure and while endangered is certainly not on the "critically endangered" list, yet.