According to Wikipedia, though he never promoted antisemitism, he did promote the work of a woman who was affiliated with the nazi party, and although that was before the war, I think it ended up evolving into something the public saw as being in very poor taste at the very least, and led to allegations of anti semitism later. The United States participated in the Olympics held in Berlin, hosted by the then Nazi Germany. Does that make the US anti-Semite? I don't think so.
Wiki also mentions how he had several openly Jewish employees and gave charity to various jewish organizations. I don't think he was anti Jewish.
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We are not so different from potted plants in that, if given everything we need to be properly nourished, the outcome can be incredibly contrary to when we are not. A flower won't grow in flour, and neither can we.