Eliot actually financed the rescue and escape of more than a few Jews from Nazi controlled Europe. Eliot had Jewish friends who clearly stood up for him and defended him.
Eliot, to be sure, also said some rather unfortunate things, which he seems to have regretted, in later life.
I don’t think the author was attacking Eliot personally, rather demonstrating the acceptability of antisemitism by his contemporaries, that his sentiment was in the cultural mainstream. The Oliphant cartoon differs only in that though there’s been significant protest, Jews as Nazi butchers is perfectly acceptable in some quarters. His personal views are largely irrelevant.