He is not in a HW Goat convo and unless he has like 10+ title defenses he won't be. Though he does have the chance for surpassing Mayweather in P4P convo if gets a few more impressive wins.
You can only be the best of your era. Usyk is the P4P the best of the current era. Saying if Inoue and Crawford were heavyweights they'd kick his ass is stupid. They'd have a difficult time making their game plan work with an extra 80lbs of ****ing weight.
GOAT? No way. Usyk is an ATG now but he does not even make the Top 10 ATG P4P list in my opinion. Emotions always get involved here after a great win. You gotta put everything into perspective, there were eras which were stronger than this one.