That's true, but the www/no-www/http/https cases are very likely to refer to exactly the same site. Besides, Google's algos, through crawling, should know that

That's true, but the www/no-www/http/https cases are very likely to refer to exactly the same site. Besides, Google's algos, through crawling, should know that it is the same site. It seems unfair to punish the site for this.