Vitriol is a good way to get people talking.
The best thing I can think of to hate right now is when poor quality fish is used to make sushi, when the tuna is floppy, squishy, and carries a lingering watery aftertaste when it should be firm-fleshed and tangy.
I heard an interview on NPR with a fella who measured the levels of certain chemicals in his blood, and saw it formed a tapestry of his life. The chemicals that had leached into the soil and water from the dump he played in as a child, the flame retardant that is sprayed into all furniture and sundries that could possibly burst into flames, and the mercury from the swordfish he had eaten the night before.
Mercury. Oh, Hermes, we're poisoning the world. We put chemicals we will someday drink on our lawns, and the number of female hormones in our water supply (which water filtration plants cannot filter from the urine of women on the pill) is steadily increasing.
Hey, look, I found some things to be angry about.
And now, for contrast, http://www.notwithoutmyhandbag.com/babynames/