Subsets can't contain elements that their supersets lack. If A is a subset of B, then if x is an element of A, x is also an element of B. So the claim that a state ideology is a subset of a method of analyzing history would necessarily imply that methods of analyzing history habitually contain elements of state ideologies at their core, which I haven't observed. Hence I see a contradiction there.
> You were talking about the focus on heavy industries of the Soviet Union.
I did not grow up in the Soviet Union, hence I wasn't talking about it.
As for a method of understanding history containing and ideology, this is absolutely the case. All methods of analyzing history and social systems at some level rely on an ideology. Marxism as a method of analyzing history also is an ideology. For other methods of analyzing history often the ideology defaults to the current ruling ideology.
Marxism also contains economic theory, and social theory, all in the goal of analyzing history and changing it. Marxism writ large contains all of its sub-tendencies which understandably after 150 years evolved a lot.
As far as my assumption that you were talking about the Soviet Union, often Marxism Leninism refers to the precise ideology of the Soviet Union. If you meant it in a different way, you'll have to specify the country and time period because various different ideologies call themselves Marxism Leninism (and none of them come from Marx or Lenin).
I don't see the incompatibility. Lenin used Marxism, a method of analyzing history, to derive a political program for the Russian empire. Not everything that the Soviet Union did was done because of Marxism Leninism - the vast majority was done out of practical considerations, outside of the general guidelines.
>I didn't claim any such thing. You simply asked what did our Marxist government focus on, and I answered. And there's no reason to jump hundreds of kilometers away into the USSR and decades into the past into the NEP period; our economic failures stretched all the way from 1960's onwards all the way to the fall of the Iron Curtain.
You were talking about the focus on heavy industries of the Soviet Union. I explained to you why this focus on heavy industry had nothing to do with Marxism, and everything to do with the geopolitics of the Soviet Union. I gave an explanation that was valid from death of Lenin to the end of the Cold War. It seems to me that my thesis that the Soviet government wasn't a "Marxist government" but rather a government whose political program was initially based partly on a Marxist analysis of history, but were many of the fatal decisions and errors had nothing to do with Marxism.