Well, everyone agrees that actors in most porn movies are just here to turn on the viewer, and could be replaced by CGI with equivalent effect. "Objectification" just means that.

Sorry, don't want to turn this into a full-fledged political argument, but your definition seems to be missing some important part. Any movie can be replaced by sufficiently realistic CGI, but left-wing folks don't seem to be against movies in general...

Ah, thanks. Now I see what you misunderstood. The point of making the argument high level is because then you're able to 1) see the depths of your ignorance and 2) see where you need to move to remove that ignorance. Moreover, the best arguments are going to be written out more completely somewhere else anyway (probably books).

For example, if you're arguing at a high level that porn should be illegal, you could import the work of other people to support you of which the details have been argued -- and this makes sense if your argument is representational of the highest level of thought within that area.