I expect you’ll get the negative knee-jerk reaction from FReepers don’t understand the situation.
Scrapping of large ship in the United States is very costly and full of potholes around environmental issues. There is probably tons of asbestos on each of the ships. The boilers are likely to be radioactive(no not from nuclear but from fossil fuel). The paint alone is a nightmare - one will have to dispose of it by approved methods. And lastly the price of scrap steel is down, practically not worth hauling to the scrapper. I suspect the steel used in aircraft carriers will bring more than your scrapped car would, but not enough to make up the deficit of the labor and materials to render to scrap. The real money is probably in the bronze, copper and electronics(gold).
“ The real money is probably in the bronze, copper and electronics(gold).”
And most of that is pulled before they get towed to scrape.