I agree that the rule changes are bad and ill intentioned, but I am not sure what I can do about it. And, even if it was zero cost for me to move to an ETF without SpaceX, I would not do it. The market does what the market does, that is what I signed up for, it is a lot smarter than I am. It is not worth changing that for an insult to what will be a few percent of my portfolio. Even if SpaceX drops to 1/2 of its IPO, it will be like having a typical down day, and it will recover. I do want a piece of SpaceX, I just wish it would be at a better price.
As far as the appreciated gains go, I agree with you. However, there is a strong correlation between someones wealth and how much they have in taxable. For most people, especially those that are not wealthy, their equity investments are heavily weighted to retirement accounts,so I look at this as more a rich persons proble.