Oh please. No one knows what 'booming economy' even means. It's just a term that politicians throw around to get votes. So-called 'economic experts' are famously wrong about everything

If they could really predict more than squat then everyone would be rich.
This is what the AI that now lords it over google searches has to say about it:
A growing or booming economy is a period of rapid economic expansion that's characterized by:
Higher GDP: A country's GDP, or gross domestic product, is the value of its goods and services produced over a specific time period. A booming economy is characterized by a higher GDP.
Low unemployment: A booming economy is characterized by low unemployment.
Rising prices: A booming economy is characterized by rising prices.
Rising asset prices: A booming economy is characterized by rising asset prices.
Even AI doesn't know what it means. It doesn't clairfy what 'rapid expansion' actually refers to in a practical way. Now what eventually happens when something 'rapidly expands'?...
What's wrong with an economy that just stays the same when everything's ok i.e. reamains static? How long is it expected to be able to 'grow' before it starts falling into the sea?

It seems to me that in order to comply with the laws of the universe, 'the economy' has to be either 'growing' or 'shrinking' in basically equal quantities (just long enough to get to another election, hence the evenly distributed 'right/left' election wins).
And yes, mass immigration does artificially raise 'GDP' (another term beloved by politicians). It's true that some of them are surgeons, scientists, doctors, engineers etc. but most are just ordinary people with mediocre capabilities and a not particularly good education. With mass, unfiltered immigration you get the worst of what other countries have to offer (and sometimes that's very bad indeed). They aren't going to suddenly change just because they are in a different country
Where I'm from the govt. pretended there is a mass housing shortage (there isn't--and census figures prove it). This has brought about a housing boom which has temporarily lowered unemployment figures. Does that indicate a 'booming economy'? It has also flooded the market with shoddily-built, hard-to-sell sardine-can housing and caused house prices to plummet, 'gifting' people with mortgages that are considerably larger than their house is worth. Interest rates went up along with mortgagee sales. Many homes have become unsellable because they have lost all their sun and privacy due to having what was once a single house next door with trees and green spaces but now have at least ten two and even three-storey ones squeezed onto the same plot of land-- with no trees and no micro-environment. Is that a 'good thing'? The same govt. preached to us about climate change yet gave no protection to trees and green spaces and ensured that new housing developments have NO outdoor space whatsoever which means residents can only dry their laundry inside, and the lack of any micro-environment ensures that they will have their air-conditioning units roaring away all summer long. Oh, how VERY environmentally friendly. It's also given the govt. an excuse to greatly increase immigration, citing a shortage of labour. This, in turn, increases GDP. It's a never-ending cycle. More immigrants, more need for housing/infrastructure/health etc. more need for workers (especially cheap ones who don't join unions)... Politicians don't give a shit about anything except being re-elected, hence their obsession with the terms 'economic growth' and 'higher GDP'.