Puh-lease... you want to talk about foot prints... how about Big-Agra's foot prints in waste, emissions, poisons, animal deaths(combines, chemicals, etc.), market controls...
Nobody, including the vegans, no matter how much they want to wish otherwise... is getting off scott free.
And dairy wasn't so disgusting when you were an infant was it?
The fact that adults find dairy disgusting is the product of ridiculous moralizing, not logic.