Feast on as much meat as you like!
Gorge yourself on a wild-caught seafood mukbang or have a large platter of beef steak every day! Who cares if the environment is polluted or if anthropogenic climate change is under way? Who cares if tons and tons of perfectly edible meats are discarded just because they reach their best-by dates? Let's all eat a ton of meat and waste a whole lot more!
Destroy all the forests!
Destroy all the rainforests and deciduous forests! Kill all those conifers! Die, die, die! Make way for human civilization to advance!
Kill all the fish in the ocean!
By 2050, the world's oceans are predicted to be empty of fish. But who cares? Fish tastes good, and they are "healthy" for you. So, you should eat as much as possible and encourage others to eat as much as possible. Just eat as much fish as you want, until you destroy marine life globally! Muhahahaha!
Pollute the air with greenhouse gases and other pollutants!
Humans should breathe polluted air, because they will suffocate and die. The more pollution, the better. Pumping out greenhouse gases (animal agriculture industry, automotive industry, food waste, fossil fuels) regularly will ensure global climate change and anthropogenic mass extinction.
We have already seen zoonotic diseases rising in Africa and China because of animal habitat encroachment and related zoonotic diseases. The next big pandemic may just be within the United States of America, started from a handful of workers in the animal agriculture industry, killing millions more people and putting the economy into a Second Depression. The more people killed, the better. Humans deserve the consequences they've caused.