Well, large parts of Northern Ireland became a sort of open air prison for many Catholics for quite a while, with UK army patrols there treating anyone Catholic

Well, large parts of Northern Ireland became a sort of open air prison for many Catholics for quite a while, with UK army patrols there treating anyone Catholic as essentially automatically guilty of something. In those territories during that time, the UK army joined up with unionist para-militaries and became essentially a domestic terror force targeting a subsection of UK citizens, selected by the ethnicity indicated by their religion. Shooting unarmed citizens and torturing people became standard practice for sections of our miltary. Look up the Ballymurphy inquiry. It is worth keeping in mind that it is also only very recently indeed, that it became legal in the UK for the head of state to be married to someone Catholic and it is still illegal for the head of state to actually be Catholic. Just to be clear, I am not Protestant, Catholic, or Irish. I have no particular dog in this fight. It is just a section of fairly recent history that illustrates rather clearly that the UK is not above using the machinery of the state to target its own citizens based on their religion.