That was the whole point of the TS i.e., to create an unfair gap b/w the SH Pirates and the rest of the WG bar BB.
This absolutely was not the point of the timeskip whatsoever. You’re so wrong on this point it’s hilarious.
The point of the timeskip was so that the SHs would be prepared
before going into NW so that they would not suffer any loses to their crew like what almost happened to them in Saboady once they got there. It was not to put a huge gap between all their peers because while they were training, the other Supernova were gaining actual NW experience battling strong pirates (mainly Kidd) which can be a method of growing stronger. This method though comes with downsides that the SHs wanted to avoid and Kidds journey specifically is the one we can look at to see kind of what would’ve happened had they not trained before going in.
You claimed all Kidd did was “go around and bully NW Veterans”. But that is complete bullshit because we already know that while Luffy was fighting baboons on an island Kidd was fighting guys like RHP and Sweet Commaders Lol. You think Kidd got all those scars from “bullying” weaklings? Kidd and Killers vivre card specifically noted that they got into “many conflicts” in the NW. Hell look at how buff both of them got lol
Going head first into NW and fighting dudes for 2 years like Kidd did is absolutely a valid way to get stronger, just as good as hiding on an island training for 2 years depending on who you’re fighting against. But it’s risky because you will most likely have to suffer losses to grow, which is something the SHs did not want to do. Kidd got much stronger through actual experience but he lost an arm, gained scars, probably lost crew mates, and tarnished his reputation to do it.
Now that the SHs trained for 2 years before going to NW, when they get there they were prepared to immediately make an impact and didn’t have to suffer for two years to grow strong like Kidd.
That’s the point of the timeskip. But just because they trained doesn’t mean Luffy came into NW way stronger than a guy who was actually in the NW getting into many conflicts and gaining real experience for two years.
Two methods of gaining strength. Training (Safe and efficient) vs Experience (Risky and painful but great pay off if you survive). Luffy took the safe way because he could not afford any losses, Kidd took the hard way because he didn’t care and he paid the price for that. They still end up at around the same strength though beginning of timeskip.