“As I have said, others of more practical set of mind developed the ideas of the Manifesto or introduced their own.” Agree. However, your first proposition was to equal My Kampf and The Communist Manifesto. We could say easily that the Crusades (or the genocide/ethnocide in South America) were in the New Testament under the same description.

“In name, perhaps. But not in essence. Bosheviks were steering by the ideology since about 1900 (too lazy to find the exact date) when their party was called RSDRP (b).” In France, the separation between Socialism and Communist was in the Congrès of Tours in Dec 1920:
http://en.wikipedia.org/wiki/Tours_Congress

“To genocide - no. To classocide - yes.” Not really the same thing no? The Aristocratic Class is forbidden in USA, doesn’t means they kill the UK Royal Family as soon they put a foot of the grounds of USA.
Nobility was abolished by Louis the XVI ins a (vain) attempt to stop the Revolution, and he didn’t kill the Aristocrats…

"The bourgeoisie would be removed as a class". See above. “As a Class”

And the 2nd link is even funnier (especially when you see the names of the authors of the sentences). I can probably (and probably some did) the same with all Regime and ideologies.
In the name of Christianity: Arnaul Amalric: “Caedite eos. Novit enim Dominus qui sunt eius (Kill them all. For the Lord knoweth them that are His”
Capitalism: See all declaration about law f Market for Irish, Indian and others famines, or the right for nations to have colonies… Too long to do it myself, sorry, I started a new Inquisition character…
Islam: read the book…