We've been opening up to private investment for decades, it doesn't work... Europe/EU has far more state/private partnerships and have much higher productivity and hence higher wages.
Rising wages at the bottom? How does that work? and remember many low paid are in the state sector, then there is the lower paid striking.. and the Govt telling to FO.
We see wages rising at Amazon or Lidl and they then attract staff from Social Care, so lets rise the wages of Carers? then AHPs won't train and go into debt to get a degree because they won't earn anymore than a carer... and so it goes on.
No single action will get us out of these issues but we could nationalise energy, join SM, have a better relationship with EU.
China is the emerging threat too, we need to address that, as is the UK's water infrastructure, we wont be doing much at all unless we renationalise that too, private water doesn't work, they simply will not invest.