There are physical limits what a human can do . A natural heavyweight cannot cut enough to compete in featherweight and a natural featherweight cannot bulk up enough to compete in heavyweight . Some are able to jump some weight classes since they are pretty close together but like said there are physical limits what a human can do .
Beterbiev does not lack skill. He is an incredibly talented and skilled pressure fighter. Beterbiev though is quite old so that might play a factor, but I'd back Beterbiev to beat Crawford at LHW.
I think Crawford is the best all-rounder rn. Bivol has some of the sweetest footwork, he hits in rapid volume. Watching Bivol is a masterclass. Beterbiev has an amazing boxing IQ. His knowledge of range and how he beats his opponents apart when he gets them within his zone is just shocking. Obviously looking forward to Bivol v Beterbiev 3 but if Crawford thinks he's in the mix there then I'm very excited
History has shown people Crawfords size can fight at HW with success. The sport as an institution doesn't allow that to happen anymore for a bunch of reasons. But this is not a hard limitation on the human body. In theory anyone can fight at HW. HW is not a weight class. The other weight classes are weight classes but HW is just boxing 1.0.
Bud gets KO’d inside 6 against both. Canelo fought ok but that was so far from the best version of Canelo that it’s not even useful to compare that to the Bivol fight. That takes nothing away from Crawford but come on, it is absolutely crazy to think he has any hope at all against two ATG’s at LH. He’s not getting out of either fight on his feet.