Fred was a fag.
I'm not a Marxist but Freddy was a fag who knew nothing about anything.
Nature is nowhere near "conquered". What you call "dominating nature" is merely pretenders claiming the name of nature to sell their enclosure of the peoples' land, proletarianizing them and making us suffer.
I think what you would get out of Marx "flipping Hegel on its head", speaking charitably, is exposing it as a house of cards resting on a seemingly rational kernel, that makes a lot of sense for political thought. Marxism, despite its rhetoric, is not "the Science" - it's a political thought, not a treatise on natural philosophy. None of the Kraut philosophers really get into naturalism, and for Marx he was primarily a political and economic writer rather than suggesting a grand theory of how the world works. Hegel was an ideologist and mystic, and a terrible scientist. The German system is terrible for conducting science and intended to be so - for the Germans, science was to be commanded by the aristocracy in secret, who knew not to use the Hegeloid stuff for the real world. They literally do not have a word for science ffs.
Naturalism is in the end concerned with a mechanistic view of the world. "Vitalism" is a political language, which we ascribed to life. Biology is a sort of bastard of nature - nothing about the world suggest life emerges in a clockwork at all, or functions as a clockwork. We don't have any atomized unit of "life" that can a singular mechanism, unlike particle physics and chemistry where the atoms and units in question are few in number and their qualities simple enough to define, building off each other. Living systems are described not by form but purely by function - hence "life functions" and the development of modern systems theory to answer biological questions. It should be noted modern systems theory in biology was conceived by a Nazi scientist / German aristocrat, and the ide was picked up as a useful model for computerization in the last half of the 20th century. Cybernetics was claimed by systems thought, but strictly speaking cybernetics is just a purely mechanistic view of the world. It simply was chosen to regulate "systems", because "system" became to describe living things and their social and political arrangements. Before the rise of modern systems theory, no one really described capitalism, socialism, or theories as "the system" in the vague sense that the word is used today. "System" in the past had a much different meaning, used more in philosophy and philosophy of science for its proper purview. Society and philosophy sturbbornly refused the systems approach that had been useful in early modern science, which is why you have the difficulty with Hegel and Marx, and many of the political writers are continuing in the vein of Plato and Aristotle without any "system" as such.