Radical or hard or global social constructionism [1] (or perhaps more accurately radical/hard/global relativism about truth [2]) are discredited because both are manifestly incoherent and prevent any serious thought from being possible, since they amount to a total denial of the existence of any kind of observer- or society-independent reality, i.e. they devolve to a solipsism of some form. Solipsism is not a coherent (or workable, at least) worldview, so can safely dismissed.

It is hard to provide a citation for these points because these points are so philosophically obvious that few waste time spelling them out, but searching for "hard/global constructionism" or "hard/global relativism" (on e.g. Google Scholar), or asking an AI about problems with these views I hope will make it clear why they are dumb, if it isn't already obvious to you.

Soft forms are of course totally fine. But to say "conscious is only and exactly whatever we say it to be" is hard constructionism / relativism, so completely unserious. Very obviously there are aspects of consciousness that do not merely depend on what we believe or say about it, even if some social constructionist aspects are also involved.

[1] https://plato.stanford.edu/entries/social-construction-natur...

[2] https://plato.stanford.edu/entries/relativism/#RelAboTruAleR...