That's the end state that Marxists believe will obtain (though Marx would have thought advocating for things like that odd). However, in practice, communists often support social changes that facilitate a state of affairs that is favorable to communism. They often employ the aid of unwitting supporters which is why most people who support these causes will flatly deny that they are communists because they aren't, at least not totally or consciously. (Note that when I say "communism" I am using the meaning it has been typically given in practice which is synonymous with "state socialism".) Gramsci, Rudtke, and Marcuse advocated this approach.
For example, many groups that advocate the dissolution of the nuclear family or sexual revolution have a communist origin. Why? Because it is an act of social engineering that aims to strengthen the power of the state by isolating individuals and creating a dependence on the state in various ways (the promotion of sexual license and various depravities also takes the old Augustinian[0] observation and turns it on its head, using such things to blind and enslave the populace). There is historical precedent for this as well in places like the Soviet Union. Pavlik Morozov comes to mind[1].
A great timely example is BLM. If you visit the BLM website and read their mission statement, it reads like something straight out of a Marxist handbook. This is no accident. The founders of BLM are indeed committed Marxists (they've been open about it) and routinely celebrate Marxist criminals like Assata Shakur who is wanted by the FBI. BLM is hardly the only organization that does this. It suffices to note the influence Saul Alinsky has had on many on the left including many prominent people on the left. The community organizing tactics outlined in books like "Rules for Radicals" are nothing more than revolutionary tactics that are used to transfer power to oneself.
(Incidentally, much of what we're seeing is class conflict masquerading as racial conflict.)
[0] “Thus, a good man, though a slave, is free; but a wicked man, though a king, is a slave. For he serves, not one man alone, but what is worse, as many masters as he has vices.”
[1] https://en.wikipedia.org/wiki/Pavlik_Morozov