Ever hear someone ramble on about the philosophical legitimacy of animal suffering? When someone focuses entirely on the concepts surrounding an idea that causes anxiety, in an effort to avoid the real issue, that is intellectualization. People will yammer and go on and on about all kinds of bullshit, so long as they feel no guilt and get to continue doing whatever they please. People, with their half baked philosophical arguments, can become condescending and hostile. They hate vegans just as well as anyone.
I have had people argue that animals are not sentient beings. That they can’t feel pain. People will do their best Nietzsche impersonation just to avoid the truth.
Last, but not least, Denial.