IF there is some magical winning line for white i sure as heck havent encountered it. if it does exist, i doubt 99% of players even with rudimentary aid from an engine know of it.
and no, suggesting an 8 move line does not constitute a refutation. What i have encountered is lines in which black takes longer to equalize.
It would be winning for white if they only analyse lines that are known to be losing for black. Talk about diputs.