That contains an element of religious/moralistic thinking that doesn’t address the core question. If you believe you are designed intentionally to eat meat, as the Abrahamic faiths directly state, then you will not agree with the notion of speciesism.
Factually it is that factory farming and the industrialization of meat production has both enabled humans to consume vastly more animal protein than their body “needs”. The resulting overproduction as well as the concentration of the waste streams causes significant environmental harms