I did not know that Polish was spoken more in Ireland than Irish, and I still don’t know it.
Also Anglo Saxon is probably the whitest descriptor imaginable. The fact that the differences are minute to you means you probably don’t have the authority to speak on this.
It is not merely “one of the official languages”; the Irish constitution grants it status as “the first official language”, and English as “the second official language”, obviously granting primacy to Irish.
The reality, however, is that indeed Polish is spoken more than Irish in modern day Ireland, and the former is in decline and will probably be near extinct in a generation or two.
The difference are certainly minute compared to the possible variety of differences in the world.
In Japan, for instance, varies ethnic groups live that either speak languages that are are as far removed form Japanese as Danish is from English, or genetically not related at all.
To not even start about “Han Chinese”, which is an “ethnic classifier” that is so wide, it s more analogous with “Germanic”, “Slavic”, or “Romance” than it is with “Anglo-Saxon”; and contains a larger number of inhabitants than any of them respectively.
“Anglo-Saxon” on a world perspective is really quite close together and comparable to “German” or “Francophone”.