Tbh I did forget about versal but yes the PL of the VP1902 absolutely has more than 3 million logic gates no matter how you slice it. I have no doubt that there are non-fpgas with more, but it is a bit disingenuos to say they're orders of magnitude under where they actually are.
I'll also note that it has a ton of SRAM onboard which doesn't shrink well, so I'm not convinced just by that extrapolation that you could eclipse it with a simple lithography shrink. Unless you really meant several per wafer, which doesn't really feel like a hard target...