Exactly.
In much the same way that those who think the virus will just go away are deluding themselves, so are the people who think that the whole country and economy can exist in a semi lockdown / social distancing state for years on end until a vaccine is found - if one is ever found at all.
Aside from that social distancing physically can't be practised in some small retail and food related outlets, nor in some other jobs and industries, it would render a vast swathe, if not all, of the tourism and leisure and hospitality industries uneconomic and unviable.
All the talk over the last two pages of reduced numbers in pubs, doormen, table reservation systems, table service etc. Who exactly is going to pay for all this? Most pubs work on wafer thin margins so are not flush with spare cash to pay for these things.
Travel and tourism alone accounts for nearly 10% of this nation's economy and accounts for some 3.5million jobs. This no doubt does not fully cover everything in pubs, clubs, cafes - so add more on top.
If this substantial sector of the economy completely collapses, which is very likely, that is a huge economic hit which will decimate livelihoods, whole regions of the country and send the benefits bill soaring through the roof.
Quite simply the economy and society cannot afford a prolonged lockdown or the effects of prolonged social distancing.
And if there is no effective vaccine for say 3 years, does that mean no weddings, no gatherings, no meeting new partners, no socialising with people outside your house, no holidays, nothing apart from work and staring at your computer screen as means of contact with others for that length of time? Well if so there'll be no need for this forum as there will be no rail industry left as the government would have run out of money to keep subsidising it to cart around socially distanced fresh air.