How is that headcanon Xebec's crew was fighting with each other, different than other crews? Its a fact liar. Debunked as usual, you run.
What a bunch of shit you just spout

Rayleigh? Oden? What are you going to throw next time?
Rayleigh struggled due to his age vs Kizaru after the next chapter, he wouldn't struggle if he was younger, still we've no clue he would be stronger or not, Kizaru didn't use all of his attacks vs. him as well. Rayleigh is still Admiral level one way or another just like Sengoku.
Kaido wasn't prime Yonko when he fought Oden, he didn't even use all of his abilities vs Oden as well.
Rayleigh or Oden are not above Sengoku.
Rayleigh or Oden never beat a Marine Admiral from their own era, or from the next era.
And no one consider them to be stronger than Admirals ever. Its for prime Yonko only for being stronger than Admirals.
And don't lie about my ''logic'' when you cry by running from my post previously.