Well, exactly! I’m not using reason, so you must be saying the cause of my thoughts is unreasoning.
Wow. Let’s leave it at that, I’ll continue to point out ad hominems, and you can try and explain why they are actually addressing what I say, instead of pointing to me and defects in me.
No, just the pertinent aspects in view have to agree, a car is not an elephant, but both can be ways of getting somewhere. And a valid analogy can indeed be used in an argument, that’s the main reason for making them, to illustrate and support a point.