It wouldn't be so bad if the people suggesting that Zoro's plot-line is not actually Zoro's plot-line but a hype tool for Brook were, well, were not the resident regular Zoro downplayers of this forum.
It's not so much the theory, or even the person who made, but the fact that majority of people arguing for it are pretty much folks who shit on Zoro for a living. So that's why they're getting the backlash.
It's also reactionary. Ever since Wano started, whenever Zoro was put in spotlight or close to it, these very same people started wilding out with shit takes to try their best and exclude Zoro or pretend that his role will be diminished, or that he's done. Saying he's done after 1010, or after 1035, or pretending he'll never go to Roof, etc, are prime examples.
And now the same people are hard supporting any theory regarding the Grim Reaper that diminishes Zoro's involvement. You see the pattern and why the backlash occurs?
Or are you telling us that people like Ndule, who theorized Zoro's big fight in Wano is fucking Who's Who, or those like Kaios/Bill, and 70% other folks supporting Brook theory, are in fact NOT anti-Zoro squad?