I really don't like being in this "conspiracy" camp either. Hate it in fact; I usually laugh at them as they're all, usually, nonsense.
But what else can I do about this nonsense?
As
@davek says above, if this is REALLY a massively lethal, virulent, scary superspreader mutation... then why the hell aren't we locking down nationally?
The only outcome I can come to is that they need an airtight excuse to lockdown London, whereas the north they didn't give a toss about.
The tier system has been a disaster, it really has.