I like how you strawman my argument into: "Hey they didn't succeed, so that means it wasn't half bad", when what I said was "It did not happen, if they wanted to, like the French did, but with advantage of even fewer scruples, they absolutely would have succeeded." Go back over your posts, read them carefully, and tell me where you established this in such a way that I am to take your claim for granted.
Let's start with the less ridiculous part of that paragraph, the part that I marked in red. You have clearly not paid attention. There was absolutely zero necessity to it. If they wanted to russify the population, they would have done what the French did, plus more. Beat the schoolchildren the second they utter a word in their native tongue. Fine and jail people speaking the wrong language in the open. FORBID the teaching of indigenous languages in the schools. This is what France has done, this is what the Soviets could have done easily, plus more, and you would have seen the results within very few generations.
Now to the ridiculous part: You're absolutely admitting defeat here. Having a main national language, a lingua franca is a completely different thing from exterminating languages and cultures, which is what this discussion circles around currently, and which is a claim you at least tacitly agreed to.