Not true... there are many, but most became disillusioned with the way fdev handled pvp and left for good around 2020/21. PP2 got quite a few to return (myself included) but there are still many out there that didn't see the changes as enough to draw them back...There's another reason, there is a lack of folks interested in PvP, not many come here for that gameplay.
O7
Consider all the high profile PvP groups that are no longer around or significantly active - SDC, Nomads, Adles Armada, RSM, Venom, Prism, NATO, Continuum, Mayhem, NaCl, RoA, Top Tier, Diamond Dogs, The Code (are around but are a shell of what they were), and many more... How many of these guys would return if there was something for PvPers more than just opportunistic ganks?