To fully understand the
irrational hate, we have firstly to understand the roots of this hate.
Just to limit the field to America, I don't think Wiki is a dangerous nest of ferociuos Nazi propagandists:
To which we have to add the evergreen
Rothschild House, not very lucky in its first moves in the States, but still present there and very powerful at global scale.
Now this is the key factor at the basis of anti-semitism, this is why it has found attentive ears even among industrials in many countries, they needs Merchant Banks but at the same time they hate the control exercised by such Banks on their activity. If you consider the modern phenomenon known as "financialisation of the economy" and if you consider that in the crisis we are living in these last years, the financial forces acting on our society seem to be the only responsibles of the impoverishment of entire nations and entire social classes (even though this may be not totally true, the main point is that people is feeling it as totally true), you will see that the Jews have some good reason to worry again about the matter.
Now, being not American, actually I don't know if this is the matter to which the OP is referring, in any case Internet is literally full of rants against
"financialisation of the economy", against the overflowing global power of banks and bankers, against the ontological stinginess of the international global finance, against the dehumanization in favor of money of our western system of traditional values and so on .. up to openly accusing the Jews of being the authors or co-authors of a global masonic plot against mankind.
In any case, I would not speak of
Nazism,
Nazism is long dead and history never come back on its steps, what is growing on today will find its own name in the next years, but
Nazism is IMO a too limited concept to comprehend it.