The majority of public shares are held in long term investments like 401ks, whose owners are most certainly interested in long term growth. Buy and hold is by far the biggest amount of investment type of stockholder. Most people don't care to fiddle with microtrading.

As the buffet bet made clear, and as the majority of advice and investors do, long term ownership outgrows those chasing short term returns, despite pop belief.

I think you vastly overestimate the dollar amounts behind stock owners.