- perhaps Corbyn didn't read it before writing the forward
- perhaps didn't know much about Hobson
- perhaps it isn't such a big deal as Victorian writers were more likely to be racist and this wasn't entirely explicit
I'm open to those points...
1. He didn’t know he was writing a forward to a book with antisemitic element
2. He did know and disregarded/chose to ignore
Either way it’s a mistake which he should apologise for or at least acknowledge?
Here is a longer excerpt of the bit about the "men of a single and peculiar race" which concludes by mentioning the House of Rothschild (page 63-64)