You have no evidence that far more people will die directly of covid than indirectly as a result of other conditions not treated and ensuing poverty as a result of the the economic effects of the lockdown....
Currently the virus isn't widespread in most of the poorest of areas in the country (Walsall being perhaps the exception). Instead they generally have the lowest infection rates in country. This is possibly because there is less contact with those who travelled abroad, less ability to travel outside those areas and less incentive to travel to those areas. Yesterday someone linked to research showing a list of the most vulnerable areas of the country to an outbreak, which confirmed my thought that a widespread outbreak in these areas would be even worse than we've seen elsewhere because underlying health and living conditions were so much poorer - and health care provision less well resourced because they are small town provincial.
So what we don't want is to let the virus get a hold in these areas in particular because the effect would be catastophic.
Ending lockdown prematurely therefore risks those in those areas.
It's really a no win situation.