[symstym]

"intelligence requires semantics and semantics is exactly what computers, by definition, lack"

This sort of assertion is experimentally untestable, not rigorously derivable from any axioms that people agree on, has no predictive power, and amounts to vague opinion passed off as fact. About a hundred years ago you might as well have been arguing about how "philosophically unsophisticated an idea like flying machines" was because flying is, strictly speaking, a behavior of flying animals.