The Jewish population was steady at about 2500, as of 2016.

That comes to the Jews being about 0.05% of the Irish population.

Yet somehow the Jews are a threat to Ireland.

The following sign was hung over a St Patrick's Day parade in Cincinnati... 

Are the Jews of Ireland really such a threat to the country despite their miniscule numbers?

Should the Irish of Cincinnati be more worried about Cincinnati being saved from the Jews - Cincinnati has a population of about 308000, with the Jewish population at about 32000. That's about 10%, far greater than the population of Jews in Ireland. And if we look at Ohio in total, the Jews are about 1.3% of Ohio with about 117000 of about 12 million... 

And with the Irish population of Cincinnati hanging in at about 11%, or about 13% of Ohio, perhaps we should save Ohio/Cincinnati form the Irish. They seem to be more of a threat (not sure of what) than the Jews are to Ireland...