Will the UK help bring justice to ISIS victims?

Over a dozen members of the UK Parliament have signed a cross-party Early Day Motion, calling on 10 Downing Street to recognize the ISIS genocide in Iraq and Syria. Most signatures come from members of the Scottish National Party and the party of Wales, Plaid Cymru. England is sadly falling behind with one signature from the Liberal Democrats and one from the Labour Party. Both the Green Party and members of the Conservatives have yet to sign the motion, which reads: 

"That in April 2016 this House recognised the Daesh atrocities against religious minorities, Yazidis, Christians, and other religious minorities in Iraq and Syria as genocide under Article II of the UN Convention on the Prevention and Punishment of the Crime of Genocide; notes the UK Government's long standing policy that genocide determination is a matter of competent courts, including domestic criminal courts; and notes the German criminal court's verdict of 30th November 2021 finding a Daesh fighter guilty of genocide and crimes against humanity; and calls on the Government to formally recognise the Daesh atrocities against Yazidis, Christians and other religious minorities as genocide and take further steps to ensure justice, including by leading efforts to establish an international mechanism to prosecute the perpetrators."