Unacceptable that.
But maybe you should be asking your party leaders like Abbott why she didn't think Al Qaeda should be illegal, and Corbyn why he lies about meeting the IRA and thought it was acceptable to attend a commemoration for a man who was involved in the murder of 11 Olympic athletes?
Abbott voted against legislation that had the Kurdish People's Party as a proscribed organisation and the Tamil Tigers. The KPP were not allowed to fund raise and recruit on British soil due to being a proscribed organisation. This was conveniently changed in 2011 when they were allowed to raise funds and recruit fighters, illegal in the UK for them to do so, to go to Syria to fight against alongside their fellow Kurds.
May clearly aided a 'terrorist' organisation and should have been put in the dock for allowing 'terrorists' to recruit on British soil. The Kurds have been fighting against the Turkish state that has made no secret of murdering Kurds, in Turkey and in Syria with the knowledge of the UK government who have provided logistics to the Turkish air force.
The Tamil Tigers were also deemed a 'terrorist' organisation because they fought against the Sinhalese majority's discrimination against them. The Sri Lankan army killed hundreds of thousands of Tamil men, women and children in 2009.
As far as getting annoyed with Corbyn for standing for a minutes silence at a meeting about Ireland, organised by a group that he was not a member off, then there are plenty of folk you will condemn for all the eulogies towards Martin McGuiness.
Corbyn agrees with a United Ireland, something the Good Friday Agreement provides the basis of, albeit at a snail's pace, but he venomously is against any sort of violent means to get to that aim. If you bothered to read what the likes of him, Livingstone, Tony Benn etc said about Ireland you would know they were against the armed struggle. As they were against the ANC armed wing. What Corbyn was for though, and probably still is, is for a United workers struggle in occupied Ireland to end British occupation in occupied Ireland, in a non violent way. Critics of Corbyn's so called support for the Irish armed struggle are wide off the mark. It is part of the constant propaganda against Corbyn because of what he says and might do to make the UK a more equal society.