Lol all this talk of "no go" areas, my god you'd have to be a petrified little snow flake to think Boston town centre is a no go area when the sun goes down!
I was living down Skirbeck Road in the early 90's and all the time the locals said the same thing, my local pub was a "no go" area according to 'the word on the street' because the Portuguese who owned it didn't allow the locals in, LOL, I used to go in there all the time and a revelation that will only shock the petrified xenophobes, they were a really friendy chatty bunch.
Boston was a run down dive in the 90's, west street mostly boarded up and I've no idea where these upmarket shops were! Apart from Oldrids it's always been run of the mill. The immigrants breathed some life into the town, they opened the empty units and things improved over the years. The quality of the women vastly improved too compared to the local swamp donkeys
I remember when Boston got the dubious award for the fattest town in the Country, the Eastern Europeans brought that average right down
What it has suffered from is the same as every town that saw such high levels of localised immigration (which happened because the work was there to do) the infrastructure didn't cope. Schools, doctors, the roads all became overwhelmed. But that comes down to the same issue across the country, that central Govt didn't use the economic benefit of migration to target investment to the areas to alleviate the infrastructure issues. And to be fair, this was the main reason the town was the highest voting percentage for Brexit, not because of racism, but because the local population was suffering with overwhelmed services, hence why when UKIP put a candidate up to stand in the area, he got absolutely nowhere.
Currently the town centre seems to be on the decline again, just like every town centre that has been hit hard by Covid and shops just giving up their presence on the high street.