This is very similar to the arguments people who discriminate against other people use based on factors like race, sex, skin color, sexual orientation, gender i

This is very similar to the arguments people who discriminate against other people use based on factors like race, sex, skin color, sexual orientation, gender identification and others. The point is that many humans have evolved to or desire to becoming more compassionate and inclusive over time, and this, the species difference, is one more barrier to cross. Instead of arguing about what will happen or what will never happen, humans will always continue to look at improving things. That's why even though we still have wars after thousands of years of civilization, we still want those to reduce and stop, and take actions that will help. It will take time to manifest changes in different spheres of discrimination and oppression, but as a species this is an inherent quality that takes us all forward.