And those populations would recover within few generations, like every other continental spanning peoples that's dealt with small pox since 1500BCE and before. No disease keeps populations across large span of geography at 10% pre outbreak over 100 years. It takes human intervention to force a specific people below replacement level for that long. When smallpox epidemics explodes, it wipes out 50%+ within a few YEARS. And then population RECOVERS, within a few generations. Populations develop some level of immunity OR social learned epidemiological responses to curtail outbreaks. Of course disease can kill, but it does not explain why indigenous population levels did not recover, especially on multi generational timelines. Not debating whether disease increases mortality, but saying disease is cause conveniently ignores the fact that persistent deprivation maintained by settlers over generations caused conditions where disease spread/has increased lethality, combined with repression prevented indigenous populations from recovering.
So yes, IMO it's completely debatable 90% of population would STILL be wiped out after 100 years in event of an earlier, pre Columbian exchange where new disease is introduced to the continent. Because unless those visitors stuck around and active took effort to genocide the locals, but using disease as a weapon AND creating conditions where disease can proliferate without response, local population would recover after multiple generations (european population took ~80 years to recover from black death).
Only if spread continental scale which implies prolonged exchange. Otherwise can be isolated to small cohort. You claim there would be 10% population in prior disease exchange. You claim it's not debatable. I use too much words demonstrate otherwise. You seem to agree. Useful information was exchanged.
So yes, IMO it's completely debatable 90% of population would STILL be wiped out after 100 years in event of an earlier, pre Columbian exchange where new disease is introduced to the continent. Because unless those visitors stuck around and active took effort to genocide the locals, but using disease as a weapon AND creating conditions where disease can proliferate without response, local population would recover after multiple generations (european population took ~80 years to recover from black death).