The problem is people (not sure if it's coping) present an argument that either it can perfectly replace someone 100% or it's an useless fad.

Even increasing the average productivity by 10-20% is huge and in some areas (like copywriting as you've mentioned) the gains are much bigger than that. Of course there's also the argument of the infinite demand (i.e. demand will always overshadow any gains in supply caused by AI) but evidence is never provided.