Hungary’s parliament this month approved legislation that outlaws school materials and other content for the young deemed to “promote homosexuality”. The effort to marginalise the LGBTQ community and link it with paedophilia has outraged many fellow European states and is straining the 27-member Union. Discrimination against gay and transgender people is an increasingly popular ploy for strongmen keen to distract attention from faltering popularity, and this is no exception. The personal, political and economic scars will endure...