I'm pretty sure there are sensible criticisms to be made of the right/constrained position, but who is making them?
Yes. As the judge in Mr Miller’s case, Mr Justice Julian Knowles, expressed it: “In this country we have never had a Cheka, a Gestapo or a Stasi. We have never lived in an Orwellian society.”
In Scotland, I fear it's moving towards those very things as an aspiration, in the name of progression towards utopia.
I've never fully reconciled myself with what I learned from Giles Udy's Labour and the Gulag: Russia and the Seduction of the British Left.*
I, too, would welcome a thorough going critique of the constrained position.
In January 1930, the New Statesman reported that dekulakisation was a "cruel experiment" involving "imprisonment and execution." Over the next two years, 1.8 million kulaks were arrested and deported to the North. Some 240,000 died. By 1931, 60,000 Russians had been arrested on religious grounds and 5,000 shot. The exact numbers may not have been known in the West, but the basic facts of Soviet mass murder, disenfranchisement, and slave labour were available to any literate Briton by the end of the 1920s.
More than a million people in Europe took part in "Prayers for the Persecuted" in 1930, effectively a mass protest again Russian barbarism towards the clergy. The Soviets’ use of unpaid prison labour to produce timber in the unbearable conditions of northern Russia was well documented and led many countries to boycott Russian timber in the 1920s. British sailors travelling to northern Russia saw the conditions with their own eyes, and numerous stowaways and escapees were able to provide the grim details. The evidence was there for those who had eyes to see.
Not everybody did. Timber made in gulags was illegal under the Foreign Prison-Made Goods Act of 1897 and the Labour Party had taken a strong stand against "sweated goods" when they were in opposition in the mid-1920s. And yet the Labour Party did not ban it once they were in power (the Conservatives finally did so in 1933), and many on the British Left refused to accept the evidence of brutality, starvation, and mass shootings long after the evidence was overwhelming."
https://www.acton.org/publications/transatlantic/2017/11/03/book-review-labour-and-gulag-russia-and-seduction-british