@Alexandra2001 - yes OK the migrant visa levy, but it is quite cheap compared to healthcare in countries with a private healthcare system. It is more like the French levy in amount (where the healthcare system is heavily subsidised by the state).
Regarding immigration, I think we have benefitted massively from this, but I do believe we are in an era of mass international migration and it is only going to get worse with climate change. And obviously some poorer people reliant on the state and limited resources, are worried there won’t be enough left over for them and some rich people are exploiting that fear, for their own personal gain (monetary and power).
It seems the electorate is very concerned about it and would like the State to control it better. With only those allowed in who directly benefit the country long term (NHS, care - although the latter should be queried because it is unskilled, rich people who create jobs and actually pay taxes, teachers etc). The discussion around how to manage that is incredibly complex in a system where we are all used to a certain amount of universal benefits and sharing with each other.
I guess the key question is how much state control people are willing to sign up to, is it not?