If it cant work why does it work and did even better in the past before for example germany destroyed a lot of its rail-network

It really is not though. Compared to 1994 there are 50% more passengers and 90% more freight being transported. The main issue is that the network is massivly over capacity and needs to be upgraded. However it is hardly destroyed.

Yeah, neglected would be the better word. I think the software in some trains is actually from 93-94. During this time period of increased demand they just let it run with bare minimum maintenance.

Train software doesn’t mean anything though? It doesn’t matter if it uses Windows 95 or even older. It needs to work reliably, all required software needs to run on it and that’s it. It’s like complaining your plane doesn’t run on Windows 11