Like every new technology that is hailed as changing everything it is settling into a small handful of niches.
I use a service called Consensus which will unearth relevant academic papers to a specific clinical question, in the past this could be incredibly time consuming.
I also sometimes use a service called Heidi that uses voice recognition to document patient encounters, its quite good for a specific type of visit that suits a rigid template but 90% of my consults i have no idea why they are coming in and for those i find it not much better than writing notes myself.
Obviously for creative work it is near useless.
Escalating conflict with someone with delusions of persecution is exactly the wrong thing to do.
Not knowing the system in the UK means I can’t give very good specific advice. You may be able to contact a local mental health network and there is a good chance they will know him. Let them know what is going on in as much detail as possible and suggest that he is increasingly agitated and alienating himself from the community. It sounds like this gentleman needs a conpulsory treatment order or whatever the UK equivalent is.