That's if we continue to believe human lives are more important than pig lives.

I personally think this view is problematic and it's why we're ruining the environment. We have a false sense of importance which shouldn't exist and it might send us extinct if we're not careful.'

For example, give me one single reason why we think we have the right to pollute the environment, fill the water ways with tyre dust, chop down the amazon, factory farm?

It's a lack of respect for other things which is the issue.