Apart from Corbyn, McDonnell & Abbott do you know of any other senior UK politicians who have referred to terrorist groups as their friends, stood in silence to honour dead IRA terrorists, refuse to condemn the IRA despite being asked on numerous occasions, praised the IRA & advocate honouring them or say that they wanted the British State defeated?
I am sorry but to suggest that a backbench MP like Corbyn had links with these organisations for any reason other than to suck up to them is laughable. Corbyn & McDonnell are republicans, can you work out the link?