There are multiple classic books of Marxist Critique on Idealism in the 19th and the beginning of the 20th century, but I have never seen one about the later philosophies such as Existentialism, Structuralism, Post-structuralism, etc…
Is there an author that has already given the Marxist point of view regarding those philosophies?
Not exactly what you asked for but a lot of these “post-marxist” philosophies have at least some of their roots - intentionally or not - in Proudhonisim. Proudhon wrote Philosophy on Poverty after which Marx responded with his critique, the Poverty of Philosophy, which you may find of interest.