It's incredibly expensive to have the population increase this fast.
Weird that they are to blame, even though water abstraction has been trending downwards for close to 30 year.
If you add millions of people over the last 25 years (say) then of course water will become much scarcer. And it's not like, say, food supply, which scales up and down relatively nicely with demand. Additional water provision is a massive capital investment each time to provide a load more provision in a big chunk.
Not if the profits from selling the water are reinvested into the network to increase the capacity to fit the need.
Are you saying that its fine that billions of pounds of UK water profits money have gone into overseas investors pockets, because we shouldnt have let so many immigrants into the country and so there would still be enough water services for all if we hadn't?
I'm not saying it's fine, no.
Implying migration is 'unnatural'. Which it isn't, humans have migrated as long as they've existed, and without migration the population in the UK would be trending down, which is a very bad problem to deal with.
This is just silly. Natural population growth is a term. Being the connotation police is entirely unnecessary.
Population growth in the UK is roughly in line with other developed countries. The past few years have been a bit choppy due to global events like the pandemic, but the UK is not an outlier in its population growth.