"Well, the other option would be to drop corporation taxes as far as possible, and out-compete Ireland as a tax haven. Raising taxes unilaterally would just give companies another reason to pull out of the UK after brexit."
A plan that would result in many Japanese corporations withdrawing their HQs from the UK due to the Japanese government actively deterring use of tax havens. No idea how this affects other nationalities, perhaps Japan are unique in this respect. But, for me, the benefits of undertaking dramatic cuts in corporation tax cut are not entirely clear in the current global rush to deter corporations making good use of havens.