I'm not sure but luckily there is little to no chance of that happening.
If you are an ethical vegan by definition you are in favor of animal rights. and I can't see how 'An outspoken ethical vegan" would not be supportive of "human rights", which include all my main concerns, women's rights (including the right to choose), the rights of minorities, equal pay, BLM, voting rights....
"An outspoken ethical vegan" would/should have strong feelings about violence. so he would not support gun owner's rights. And he would be against wars.
Of course, he would want to abolish factory farming.
I can see the argument that "An outspoken ethical vegan" might be pro-life. but to paraphrase Obama, no one is pro-abortion. we just want women to be allowed to make that decision. No one else has the right.