We all have better things to spend our time on than focusing on negativity: we even have better things to waste our time on.
I'd rather read good books (or pick daisies, for that matter) than engage with trolls. There are far better ways to fill our precious time on this Earth.
"A banished trouble soon starves. By directing attention to uneasy feelings slight pain is nursed into a hard ache... Some there are to turn over and over a grief or misfortune as a ruminant chews its cud. They find a real enjoyment in complaints just as some are fond of attending funerals... and so keep up a morbid, miserable iteration that fixes an image in the mind which ought to be forever banished. "If you cannot talk about pleasant themes, manage to leave. Refuse to dwell among shadows whne there is so much sunshine in the world"
—Poole, Hester M. Good Housekeeping, July 21, 1888. p. 121.