RY -there are differences between the two which is the reason you brought that as an example.
btw, that’s generally the reason why people use this type of reasoning when trying to make a point, and it’s the reason why I generally think it’s not a good argument. If someone wants to prove that A) is okay, he will say, “B) is okay so A) must be okay” Obviously, he thinks there is a difference between A) and B), or he could have just said, “A) is okay because A) is okay.