I'm always wary of assigning positions to 'brainwashing'. Not because it's not appropriate, but because I don't think it's helpful.
Yes, I should have said grooming (I don't like the sound of the word), their narratives have been groomed. I don't think the true narrative is problematic in this instance because the strategy (to reduce transmission) simply requires social distancing, the stay at home narrative is simple, obvious and can be seen to work. Here in the UK there are government announcements in all media all day stating;
This is a national emergency, stay home, help the NHS, save lives. Anyone can catch it, anyone can spread it, stay home, help the NHS, save lives.
This narrative is very powerful and can be seen to work.
You're right about the signal that's driving this, but with 7 million premature deaths linked to air pollution, the same could be said of anyone driving their car into the town centre. With 1.9 million deaths from diarrhoeal diseases directly related to poverty, the same could be said of anyone not paying a fair price for agricultural products from developing countries. It comes down to beliefs about the weight of responsibility vs autonomy.
Interestingly this crisis shines a light on the flaws in our accepted status quo. Our lifestyles are peppered with failings like air pollution deaths, exploitation of the less well off and foreign farmers, destruction of the environment etc. etc. When one thinks about this state of affairs (and I think more people will do at a time like this), one can see how our governance, regulation, social norms etc are imperfect and such failings are inevitable and inertia within the systems and belief systems makes it hard for do gooders to affect change.
Is it such a juxtaposition though? I see what you mean, but the responsible media (and even scientists) are not made up of people magically immune from influence by their social groups. We shouldn't mistake the clear boundaries to reasonable belief created by science for a guide to 'right' belief. It's not the same thing at all.
Yes the media and social norms are propagating groomed narratives in the UK, for example the grooming that socialism is destructive and conservatism is fiscally responsible by comparison has been ingrained in the social discourse for more than a generation and is seen as normality, truth. But when one takes a closer look there is a continuous stream of propaganda required to maintain this bias. Propaganda which would not be required if it were the truth it's purported to be. Whereas in reality that conservatism has resulted in a hollowing out of the welfare state, underfunding of local councils and civil resources, greater wealth inequality and exploitation of the not wealthy by profiteering capitalists. The propaganda is also utilised to distract attention on these inequalities and sweep the truth under the carpet.
The point is that I think feeling one's life (or those of ones close social group) is at risk really undercuts beliefs which were held only for convenience, but it does not dent those which were held fundamentally. I guess America has more fundamentalists.
Its not clear at this stage how many folk in the UK are fundamentalists, the light has only just started shining on them and they are hiding in the shadows. The one at the top of government has been flushed out, fortunately, Dominic Cummings, who has become irrelevant and presumably doesn't want to get his hands dirty with having to do some real work and help with the logistical nightmare of this crisis. The two main groups of fundamentalists have gone quiet, I suspect that one of them the middle class who fell for the anti EU rhetoric are beginning to wake up a bit to their maliability.