Double quote marks is defined as a direct quote, single quote marks too in fact. A paraphrase is when you say that someone believes something.
No, not even close. There's a problem in society with antisemitism, racism, homophobia, sexism, ... there's a problem in the Labour party with antisemitism, racism, homophobia, sexism, ...
Saying that antisemitism is no more prominent than any other prejudice (if that's what was said) says that there are similar problems with each - not that there's no problem with antisemitism.