The argument I find most convincing is that whilst technology is moving fast, politicts is always slow. Stuff like regulations and a general political misunderstanding of AI might lead to pushback against AI or they might purposely slow down development. Even if AI was made that could replace something such a mcdonalds workers the government may place a ban or tax on companies using AI in order to keep employment high. It sounds like a dumb solution (and I agree) but to politicians this might sound like a good solution.