This post is riddled with bias, you can just tell by reading it.
First, to say "Spence is the only fighter you can argue resume wise against Crawford" is such a bullshit backhanded compliment. Yeah, no shit Spence has fought better fighters at WW. Crawford has 3 fights: Horn, Khan, Benavidez. Compared to guys like Brook, Peterson, Algieri, Bundu, etc. Not saying Spence has a flawless resume, but Brook and Peterson are far better than anything Crawford has done.
Secondly, enough with the sports math. Most people though Horn got an undeserved win against Manny. You think Horn beats Thurman? Styles make fights. Let's not go down this road. Considering Thurman and Crawford have not fought.
Third, stop trying to shit on Spence's win over Brook. The only reason you are doing that is because you are insecure that Crawford does not have a WW win that is even 1/4 as impressive. Spence won. He fought a really good WW and it was a competitive fight.....which Crawford would know nothing about because he fought scrubs.
Finally, your last point is purely opinion. How do you know Crawford would beat Porter, Brook, Thurman, Spence, Manny, Garcia, etc? The beauty of boxing is anything can happen on fight night. If Crawford were to fight Brook, that would be far and away his best opponent. Let's not act like he blows him out of the water because he KO'd Khan.