Well, the context here was your assertion that unions don’t act in the “long-term interest of a business”. Now, most people understand that share prices are bets on the future value, but also that it’s not a direct relationship because there’s an inherent tension between long-term and short-term interests. That plays out in questions about how much or whether to pay dividends (which has seen a big multigenerational shift in investor preferences), and whether a move which raises share prices is a long-term detriment.
We’ve seen a lot of the latter discussed here lately with tech companies doing broad layoffs to satisfy activist investors, despite research suggesting that companies making unforced layoffs tend to underperform over the long term.
I don't think you understand what the price of a stock means ...