Well a positive vision for the future would be some new ideological synthesis for Britain. It would involve remixing the good parts of 1950s thinking and learning the lessons from the things that have gone wrong in more recent decades.
For example, in the 1950s people would have been appalled by the idea of mass immigration. In 2023, it is at the root of many of the UK's most significant problems: the housing crisis, the collapsing NHS, the destruction of the high trust society, the shattering of British identity into dozens of cultural enclaves.
There is no honourable way to undo the mass immigration that has already happened. However, we can radically reduce it.
At the current immigration rate, it is simply impossible for the rate of cultural integration to keep pace with the the rate of influx. At vastly reduced rates of immigration, our society would have space amd time to forge a new British identity.
We have made choices that have proven themselves destructive, but it's not too late to revisit those mistakes, and then build anew from the ashes of the current decade.