@LouiseCollins28
As to how we replace this. 2 things, training our own workers properly and attracting talent from across the world. The first of these we are pretty terrible at IMO
I agree that the UK should train more people, but in the 40 years that I've been working, I've never seen it happen. At company, industry and national level, the UK is poor at training and developing talent. I have no faith that this will improve. On the contrary, if we look at an area such as training nurses, the UK has gone backwards.
A trainee nurse in Austria pays no tuition fees, receives a grant, pays less than €50 a month for accommodation and the same for meals, earns extra money when working unsociable shifts and is valued and well-paid at the end of their training. This is how it was in the UK in the 1970s - providing the NHS with the majority of the nursing requirement and enabling an amount of social mobility. The UK's response over the last 15-20 years? Remove the nursing bursary, 'lose' the experienced, older nurses as they're too expensive to employ, bring in cheaper third world nurses, introduce health care assistants etc.
the second we are currently fantastic at IMO, I see no reason why that success wouldn't continue.
Except attracting talent relies on an open, welcoming attitude towards foreigners. This has all but evaporated - the PM thinks that EU citizens are 'queue jumpers' and while Home Sec she spearheaded the 'hostile environment' campaign and oversaw Windrush and the letters to EU citizens that were 'sent in error'. It also depends on the level of economic activity in the country. A fall in GDP of 5%-8%, another million unemployed and the closure of most of the UK's manufacturing is not going to attract foreign talent.