Would you trust any individual to police on your behalf what speakers are "conducive to the public good?" The UK Home Office feels it is absolutely the organisation to fulfill this role. It also apparently feels there are certain opinions that you are far better never hearing.

Like those of Lauren Southern, who on the 12th of March was "banned for life" from entering the United Kingdom, after being detained under Schedule 7 of the Terrorism Act (2000).

Southern was told that "by her own admission" she had distributed "racist material." It is important to note that actually, Southern, however, did not at all admit to the material being distributed being "racist" in nature, she simply admitted to distributing it.

But she, of course, was forbidden to dispute whether her material was truly racist, the mere suggestion that Southern was racist proved ample enough for her right to speak freely being expunged.