I dislike the tactics, still I defend the principle. On 13 February 2026 the High Court said the proscription was unlawful and disproportionate, and that matters even if you think the group is a nuisance. When the state uses terrorism law to punish support, people learn to fear words, then they learn to fear each other. Section 12 offences can carry up to 14 years, and that kind of power should be reserved for genuine terror, not a slogan on cardboard. Ordinary criminal law can deal with criminal damage without branding dissent as treason. If ministers appeal, they should prove a real necessity, not just a desire to look decisive. Do you really want a banner-holder threatened like a bomber? Keep the line clear and the realm stays steadier.