Are we talking about refugees or economic migrants? They are not the same thing.
Refugees are not "invading" our country. We're actually quite low on the number of refugees per 10,000 people running at 8.4
And the reason it's become a crisis at immigration centres is because our government has failed to process them
In terms of Rwanda policy, that's nothing but red meat to the likes of Daily Mail readers. It is costing an extortionate amount of money and for what? To send a handful of the refugees to Rwanda, in return for a handful of theirs... yes, they're sending us some in return, which you don't see mentioned much.
The irony with Brexit, which is what
@AstroDan was alluding to, is prior to leaving the EU there was scope for distributing them across Member States using the Dublin Agreement. Now we're on our own and the problem is totally on us.
If you're talking about economic migrants, then in the last 10 years the number of people who were born outside of the UK increased from 13% of the population to 16% of the population. That's not a massive increase over the course of a decade.
In any case the whole point of the census is to allow the government to plan and ensure there is adequate infrastructure to support everybody. If there's problems getting doctors appointments or everyone stuck in traffic that is a failure by the government to invest in those services.