You do realize that most cap gains are the result of voluntary decisions by asset owners to sell out and not roll over?
Be surprised by how many people have locked up their wealth in assets such as real estate that they will never choose to sell outright because of the present tax bite
However drop my cap gain tax or drop it low enough and I will cash out and pay tax. Keep it high or raise it and I sit on my appreciated real estate, maybe roll it over or borrow against it. But never ever pay Uncle a dime of tax on that locked up wealth.
Happens in my world too: Client held 1,000 shares of Twitter he bought at 30ish. He was 10 days short of going LONG term. The price was in the 50s when it dropped back to the 30s. The Long term gains tax was significant enough for him to wait according to his CPA, even though I told him to sell......and the stock fell off a cliff. This wasn't a TWTR problem as much as it was a .gov problem. Sad.