Why is "Anti-Catholicism in the United Kingdom" trending?

Wikipedia Overview

Anti-Catholicism in the United Kingdom dates back to the martyrdom of Saint Alban in the Roman era. Attacks on the Church from a Protestant angle mostly began with the English and Irish Reformations which were launched by King Henry VIII and the Scottish Reformation which was led by John Knox. Within England, the Act of Supremacy 1534 declared the English crown to be "the only supreme head on earth of the Church in England" in place of the Pope. Any act of allegiance to the latter was considered treasonous because the papacy claimed both spiritual and political power over its followers. Ireland was brought under direct English control starting in 1536 during the Tudor conquest of Ireland. The Scottish Reformation in 1560 abolished Catholic ecclesiastical structures and rendered Catholic practice illegal in Scotland. Today, anti-Catholicism remains present in the United Kingdom, particularly in Scotland and Northern Ireland.