The trouble is that the 'something positive' evidently wasn't positive in the eyes of too many people, particularly in the places where safe Labour seats were lost. That's because, the disastrous shift in the party on Brexit and some of the positive economic stuff aside, it reflected the preoccupations of today's radical left, which don't really have to be listed, as they have been endlessly debated on here. In particular, the obsession with 'identity' and lifestyle politics, reflecting the mentality of the largely middle class professional makeup of today's left, is evidently alienating for too many of the 'left behind,' as is the obsession with 'minorities' (which mirrors that of the right.)
This defeat represents the final nail in the coffin of the old left or what it has become, and has been a long-time in the making. The remnants of the far-left (along with those they have been able to drag in from the younger, self-righteous activist milieu) and their fellow-travellers in the LP will never again get so close to government, however far away that proved to be in the end. So what remains for them? Any change in approach will only ever be cosmetic, as they are, as as been proved time and time again, incapable of change. There will be a concerted attempt by the equally out-of-touch, Remain-obsessed Labour right, to rid the LP of their influence, which will fail because of the present-day party membership, and due to being based on politics made redundant by events since 2008, particularly Brexit. These factors, and the scale of the defeat, might mean that Labour will never be in government again, aside from in some kind of unlikely coalition. So it's back to mere protest politics for the old left. And that bodes ill: you only have to look at the hand-wringing, 'What-is-wrong-with-people-the-country-is-full-of cunts' incomprehending self-righteousness in this thread alone to realise that little or nothing will come of it. And talk of 'riots' in the summer smacks of desperation, and would only result in a further move to the right among the population. But none of this means we live in a right-wing society, just one where the delusions of lifestyle politics and 'identity' can easily be incorporated into an economy controlled by right-wing zealots.