Therefore, our question becomes do we reallocate based on that kind of investment that is way more allocated than what we had originally created.
Dump BCH holdings entirely for a considerable windfall.
Take out whatever fiat you need / want to be silly with, convert the rest to BTC. Heck. Take all the BCH-turned-fiat and reinvest into traditional holdings if you're less risk-averse.
In 2020, at the block halvening, I'm thinking of dumping $1M worth of BTC (hoping it's near $10k USD/BTC at that point), and seeing how long I can live off that, after giving Uncle Sam his 40% cut.