Not everybody did it!
Xebec did it with Wb - Bm & Kaido
Roger did it with Rayleigh & Oden
Luffy did it with Zoro
These guys aren't just some nobodies...one is a Yonko and the future PK, one is the former PK and one is...well we don't know much about Xebec but he 100% was no less!
These are the only 3 people we know that managed to get other conquerors under their command!
Now these guys!
Who's haki has been described as " unreal " ( despite the main cast having fought & defeated 2 yonkos and being the crew of an actual Yonko..... ) bow to this guy right here:
So what kind of monster he must be to get 5 "immortal" conquerors to bow to you ? ( yes not all of them are confirmed but c'mon we all know they all have it )