You still say that as though Apple should care. If people sell the stock, that's their choice (and your choice). It gets sold to someone else. The suggestions about what Apple should be doing are from people who want Apple to do something that convinces potential investors that the value of the stock is high so they can sell in future at a profit. Why not do that yourself instead of adding to the negative press? If people want the stock value to go up, don't go around proclaiming that the sky is falling unless there's a change of leadership or that Apple starts doing business contrary to how they've always done business. Instead go around saying that under the current leadership, they are hitting record numbers time and time again and their sales, revenue and profits are higher than anyone in the history of the world - they are outselling products sold at lower (sometimes zero) profit margins running an OS given away for free. If you repeat it often enough, you might even convince yourself.
If the decision is that they won't keep growing, that's ok. If people want to invest for growth, invest in startups. If people want to invest for the long term, invest in Apple, Google, Amazon etc.