Spread of Weird in the UK

I find it somewhat scary, as I had thought that QAnon, was a fringe American phenomenon. It seems, however, that 25% of a group of British people polled believed, in at least some, of the QAnon claims (https://www.theguardian.com/us-news/2020/oct/22/one-in-four-britons-believe-in-qanon-linked-theories-survey). I can't stop myself from initially, pedantically saying, that it is wrong to describe the QAnon postulates as 'theories'. Something only becomes a theory (rather than a hypothesis), when it is testable, is tested and is subsequently supported by most people who are knowledgeable in that area! Apparently, there is wide belief, in this country in the existence of secret (Satanic?) cults controlling aspects of our lives (including being involved in child abuse). 17% of people questioned, believed that Covid-19 had been deliberately released, a figure rising to 35% amongst 18-24 year olds. I would just comment that, even if this was true, it seems impossible to confirm as fact by tests. All the conspiracy 'theories' seem to do, is drive people apart and make it less likely that they will do things for the 'common good' (something that will be needed if and when a vaccine for Covid-19 becomes available). It is profoundly worrying that the younger age group are seemingly more believing of weird claims but it could be that this cohort is more likely to be exposed to them online?