Yet the whole golf world had no problem calling Jack the GOAT for decades when, if you read back, Hogan had a very colorable claim. No one was saying you can't compare players across generations then. That only became an issue after Tiger had passed Jack in every measurable relevant category but one.
Oh, and Jack disagrees with you, because one of his shifting criteria for determining the GOAT (and the very fact that Jack HAD criteria for GOAT shows he disagrees with your thesis) was that to be GOAT you needed to pass Snead's record of 82 tour wins. It wasn't until it became clear he wasn't going to make it that he shifted to most majors, one of the most dishonest things he ever did. But the point is that Jack believes you CAN compare players across eras, even if his criteria for doing so is self-serving and dishonest.
I always hope that despite the hundreds at pages of this thread thrashing these issues out someone would come here with some new argument, but not so.