30% swings are normal for a stock as disruptive and growing as quickly as Tesla and that would be true without Elon's selling. Thinking there would have been no correction at all without the selling is probably not correct either. But people love to attribute all of a move to a single reason. It just shows they don't understand how markets normally work. There is no way we would still be above $1200 given the macro environment, even without a single sale from Elon.
The impact from large sales like Elon's have a diminishing impact as the price is reduced from the initial selling, it's not proportional to the amount of selling or the length of time the sales continue. Most of the impact happens early. That's because demand for a stock is like auto demand, it's elastic, the lower the price, the more demand.
And that is why it's not going to make a big deal either way just how Elon unloads his shares. Elon is a big picture kind of guy, he's not going to fret over whether he got 5% or 10% more or less, he's just going to sell it in a straight-forward manner. It's going to temporarily reduce the price but, as the price is pushed down, demand picks up. The lower the price is pushed, the more shares he can sell without pushing it lower. There is no way to sell that many shares while keeping the share price at an all-time high and any impact to the share price is only of a short-term nature.
Since all your positions have a one-year or longer time horizon, it's unclear why the teeth-gnashing. Because you miss looking at that number on your brokerage statement that is 30% higher? Because you are happier when the number looks plumper? I don't get it.