So Chesterton agrees with the Nazis about the Jews and the 'gipsies'!A more practical comparison would be one between the Jews and gipsies; for the latter at least cover several countries, and can be tested by the impressions of very different districts. And in some preliminary respects the comparison is really useful. Both races are in different ways landless, and therefore in different ways lawless. For the fundamental laws are land laws. In both cases a reasonable man will see reasons for unpopularity, without wishing to indulge any task for persecution. In both cases he will probably recognise the reality of a racial fault, while admitting that it may be largely a racial misfortune. That is to say, the drifting and detached condition may be largely the cause of Jewish usury or gipsy pilfering; but it is not common sense to contradict the general experience of gipsy pilfering or Jewish usury.
-- GK Chesterton, The Problem of Zionism
Thomas Sowell argues at length in one of his books that some "stereotypes" have a foundation. As just one of his examples, he asserts (with citations) that Italians are over-represented in the fishing industry of many countries: Argentina, Australia, the US, etc. One only need contemplate the geography of Italy and its easy access to water to get a sense of how a large proportion of Italians might come to love fishing.
Usury is a strong term. I wish Catholics and other Christians would put less emphasis on this undefined yet accusatory word. Still, even the conservative Rabbi Lapin recently made a case that "Jews are good with money." Those less financially adept might conclude usury, which I think is a mistake. I've never met a gypsie, but a friend told me of his encounters with gypsies. As he told it, the ones he met were expert at separating a man from his wallet. I realize, as do we all, that individuals are individuals and must not be judged by the group to which they belong. Still, common tendencies may commonly apply to some groups for a period of time.
As to Chesterton's opinions, I think it better to identify which are right and which are wrong. Agreement with Nazis, whether apparent or real, is irrelevant.