No, you choose to blindly ignore every shit I wrote:
1- Xebec is a D. (this alone is enough connection as D. people are connected in some way)
2- Dragon looks exactly like Xebec (which is why we made the connection)
3- Both Dragon and Luffy are following Xebec steps in opposing WG, just like Ace despite hating his father, he was following his steps into being a pirate, DESPITE he can become marine since he opposes his father! Blood matters with actions in this series.
4- I never trust a word comes from WG... specially when they talk about "this person is a demon because they searched in Taboo subjects and ancient history" kinda like how they demonized Ohara
5- Garp HATING to talk about God Valley incident speaks to me that there was inner conflict inside himself about which side is true or false
6- I know Xebec is not bad person, which is a plus, BECAUSE I trust WB would never serve an evil person
7- We literally have precidence with Oda fooling us with lineage and who's father of who!
8- We never yet saw the dynamic between Dragon and Garp!
9- For the very first time, we have a crew other than Roger, where the captain is being described just like Luffy... Where other character say "how can Zoro or Jinbe or Sanji or blah blah be so strong and this guy is captain"... Xebec did that with 3 Yonko + others!
Connections are there... if you choose to disregard them and not believe in the theory, it's your choice... I am okay with that... but saying it has NO BASIS or that it's rediculous just because it does not fit your narrative is short sighted... because it's palpable and possible as fuck