Anti-semitic is a bit of a push, no?

Hi,

What is this weirdly suspicious push of antisemitism on Corbyn? It seems quite far fetched without much justification.
The reports are of a reply to a comment about the 'Freedom of Humanity' mural by some fella going by the alias mear one.

Please help.

I didn't find the right solution from the Internet.

References:
forums.overclockers.co.uk/threads/anti-semitic-is-a-bit-of-a-push-no.18815284/
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Thanks