I have said many times on these forums that when I moved to Birmingham in about 1980 the city was dying.
Many of the traditional industries were closing and factories were being abandoned. The canals had been abandoned and the areas alongside them were mostly a dump. We had the Handsworth riots and the British Leyland strikes. Many people in other parts of the country thought of Birmingham as a "joke" city (I know that because that is what people in London where I lived thought of Birmingham). It still has NOT fully shaken off that negative image.
But every major city needs income to pay for all the services the city provides.
At the moment it seems to me that Birmingham Council is pretty much broke and cannot afford to do many of the things it would like to do.
The only way to change that is to build more office blocks and encourage companies to relocate here, and for people to come and live and work here.
These companies will pay various taxes to have their offices in the city, and the people who work in them pay council tax on their homes in the city, and use local facilities like shops and pubs and restaurants to keep the economy active.
Without these new developments (be they office blocks, apartments, shopping centres, updating New Street station or laying down tram tracks) they city would just be living in the past and slowly dying.
A few months ago HSBC bank moved their UK headquarters, and many of their London staff, from London to new offices on Broad St (opposite the new library).
They would not have done that if they had not felt the city was being improved and moderized. It would be very hard for them to encourage their staff to move from London if the city was still like it was from the 1980s (most of my workmates said I was mad when I said I was moving from London to Birmingham in 1980).
You can "praise" Digbeth / Deritend all you like, but most of the area is a dump. I walk round Birmingham a lot taking photographs and one of the most unpleasant parts of Birmingham to walk round is Digbeth / Deritend.
Many old abandoned factories, lots of scruffy surface car parks (where you park on dirt), horrible car repair garages under the railway arches, everywhere cars parked on pavements, rubbish everywhere (the council rarely send in cleaners), cracked paving slabs and so on. It is a horrible area.
The area will improve when (if) HS2 is built, as some of these abandoned factories are done up, and hopefully the council start to take more care of the area. It will also improve when the old Wholesale Market site is developed.
Have a look at the cities that are growing all over the world, they have office blocks and skyscrapers everywhere. You MUST bring new business to a city, if not it dies.
If you don't improve a city then all the people with skill and talent go and live in another city, or even country, and that leaves Birmingham as a city that will just slowly die.
Every city develops and grows because of what it produces or provides (Sheffield and steel, Liverpool and their port, Manchester and their cotton/linen trade and so on). Birmingham had the canals, and their "thousand trades" but they have long gone so it must either reinvent itself or die as a city.
Other cities like Manchester, Sheffield, Liverpool etc are having to reinvent themselves as their "core" business went away, Birmingham must also do the same or it will fall behind these other cities. In fact I think Birmingham is already falling behind Manchester as the "second city". They have many new office blocks and other modern buildings, they have the "Media City" area and the BBC reporting from their every day, they have two major world famous Premier League football clubs and so on.
So for Birmingham to keep up all these new developments in the city are vital for the future of the city.