I would be interested to see you support this claim.
Yet you made a statement without any support. How about we just look at the numbers.
For the past 5 seasons, here are the NHL's top scorers:
1: Connor McDavid (C): 1st OA pick and generational talent, viewed by many as the best player in the NHL
2: Patrick Kane (W): 1st OA pick
3: Nikita Kucherov (W): 2nd round pick.
4: Brad Marchand (W): 3rd round pick.
5: Artemi Panarin (W): Undrafted
6: Leon Draisaitl (W/C): 3rd OA pick. Plays predominately winger as he's played with Connor McDavid more than with any other player.
7: Sidney Crosby (C): 1st OA pick and generational talent, viewed by many as the 1st or 2nd best player in the NHL
8: Blake Wheeler (W): 5th OA pick
9: Nathan MacKinnon (C): 1st OA pick
10: Alex Ovechkin (W) 1st OA pick and viewed as the best goal scorer in his time.
So the only 3 true Centers in the top 10 in scoring overall the past 5 years are all 1st OA picks and 2 of the 3 have been considered the best player in the NHL for their time and generational talents. On top of that, most of the best players start out as C in their youth hockey/younger days and convert to winger later. I understand there are 2x the wingers vs. C, but the data doesn't support your assertion.