Is this a joke about every day being a 0-day?

I see your distant highway traffic and raise you the sound of a distant railway, especially at night

What makes them fallen?

Another government related one. The UK government were until 2015 still paying compensation to families that made their wealth in the slave trade, for it’s abolition. Another way to read this is that some wealthy families accepted tax payers money as compensation for their ancestors no longer being able to profit from the abuse of humans.