The 100% tax break is for QSBS specifically, but it seems like you're saying all capital gains should be taxed annually rather than at realization, including regular retail investors, people who own houses, etc.
> If they're legitimately long term investments then "sudden unexpected" taxes shouldn't be a problem.
Sometimes people make financial plans based on what they believe their assets to be worth, e.g. deciding when to retire. Certainly people shouldn't be making big life decisions based on short-term gains but doing so based on long-term gains created over decades seem entirely reasonable. Finding out that those long-term gains are now worth 5% less (because the tax rate went up 5%) could be frustrating.
