Starmer already is that person. If he was "touchable" then they'd already have done it. You think whoever "they" are want a Labour leader at all? Of course not. They would already have tried everything with Starmer but he's clean so they have nothing.
Now that is out the way, we can move on to the next point which you have been pushing back on which is about personality and not policies and then you say yourself that your mates have all been voting on personality. Clearly Starmer has free reign to implement whatever policy he wants to and it won't matter how left they are because people vote for people. Why aren't people like you urging the party to be doing more for the people it is supposed to represent instead of arguing with us all about attracting the centrists?
Fact is that you are not talking about the centrists because all the centrists would already be voting Labour because the Tories are unelectable so the only people left to attract are those that are right of centre and I refuse to believe a Labour should be occupying the centre just to win a handful of centre-right/right voters. What would be the point in winning? It's mental that you could even think that just sticking a red cover on a Tory manifesto is the best we can hope for. Your strategy might have been reasonable if the last 3 years hadn't happened and we were talking about reducing a majority with no real chance of leading but they have happened and Labour will almost certainly be the leading party so you and other centrists should be seeing the opportunity to take a significant step to the left instead of a defensive move.
He does seem untouchable and seems to have a very clean past, and there have not been any scandals either. Nah, course they don't want Labour, but Labour under various leaders is a different proposition, some they find it harder to go against, as we're seeing now.
Old mates/ collegues I suppose, don't really see them much now, you kind of get forced to be mates with all sorts of people when you're with the same guys all the time, going to various places etc. Most of them went to war under Blair (like myself), and they talked far less crap about him than they did Corbyn. It's good in a way, as you get to see all sides, and don't only hear the same things in your social bubble. All my mates now are pretty much aligned to what I think (so it's more like a bubble again), most will take any Labour over any Tory government, and not many of them have many digs aimed at Starmer. Still meet loads of Torys through work, but I don't have to live and go out on nights out with them.
I don't think they're just voting on personality, but that was what they were most vocal about, as that was easier to target. They saw something they didn't like, largely fueled by the media I expect. Most of them were probably middle class when I knew them best, but most are now top 5%. A lot more of them have moved back to Labour now mind, even though they've gone up significantly in wealth.
I'm pretty sure the policies will be discussed with MP's, based on the thoughts of members, unions etc, and they will have a strategy with that, to try and win. The party will end up representing a range of people, from left to centre, from being skint to being quite well off, but hopefully, it will favour the least well off more than the last 15 years has. I've not seen the manifesto yet (and neither have you), so for the time being I'm going to assume it's centre left (you can assume whatever you want), which is where the average of the people will be. Doing more for the people is only possible if you win, what did Labour do for the people when they lost, when the Tories were in power for what will be 15 years?
The centrists will largely all vote Labour if there was a vote now, but there's not a vote now. They don't need to attract more, all they need to do is retain what they have, or not let a load of them get pulled away by the tories. Chances are the tories might have to soften up to get these voters back. I don's see the labour position changing much, but do expect the tories to gain some voters back, which means the weighting of the party/ voters would be further left, and they would still win.
The situation will have changed a lot in two years, but probably not as much as it's changed in the last 3 years. Anything can happen though, as the last two years have proven.
It's mental that you think the Labour manifesto is the same as the Tory one, when it's not even out yet
The only manifesto I can see on the website is the 2019 one, if you have the 2024 one please provide a link.
I don't think now is the time to assume Labour are going to win by such a landslide (not as shown now anyway), the only indication this would be the case is the current polling. To assume that current polling will materialise in two years would be assuming the position/ situation stays the same with inflation, energy, war, covid, whatever, I don't think that's the case. Any changes from this will probably be marginally positive, and the press will dress that up in Sunak's favour (more than it actually is). I still think Labour will get 340-380 seats, no matter what mind, with Starmer in charge anyway.
I think the better chance to take a step further left (from the manifesto none of us have seen) will come in the second term. Labour should be able to iron out a lot of problems in 2025-2030, so will get more trust in them, as a result of that.