It is a model, it is a model that has been useful for me. I don't discount that there are flaws with Post-Structuralism but most ways of making sense of the world have flaws.
I guess it is (for me) about practical approaches and solutions vs theoretical musings.
Also in general people are not all that bad. Even most bad people are just misguided, not inherently bad.
It has actually given me a hugely positive outlook since it means I don't feel so lost when I need to affect change. I know what power structures to target as opposed to feeling lost.