Laski was taking the very long view, and didn’t demand the “dictatorship of the proletariat” right away. He knew that every step to the left, every “program” that was instituted, would never be repealed even if the socialists were temporarily turned out of office. Look at the National Health Service; that has irrevocably turned Britain into a “worker’s paradise.” It has not been repealed, there is no serious talk of ever dismantling the program.
It is very much the same here with 0bamacare. It will be tweaked around the edges a bit here and there, but in the end neither party really wants it gone, and so it will stay. No matter how toxic it is to the economy.
And Social Security and Medicare. Those unconstitutional socialist programs are so deeply embedded that Republicans won't even point out that they obliterate the Enumerated Powers. Every single Republican running for president this year is, for all practical purposes, a New Deal/Great Society Democrat.
BTW, one of the most bizarre performances I have ever seen was the glorification of the National Health in the opening ceremonies of the London Olympics. Given the long and glorious history of the Sceptered Isle, they couldn't think of anything else??