By aggressive I mean persistent and forceful, not 'mean' or 'angry' I suppose there was a clearer word I could use. I'm not great with words.

That is great and it's something kind of inevitable, to talk about your lifestyle when it comes up. How often does that happen online? Do you think that a passive attitude is sufficient to stop cruelty?

Online, not very often. I sort of avoided mentioning it because I don't want my first impression to be shaped by my diet or poltical views. Maybe now that I'm a bit more known on Hubski I won't avoid it anymore.

I think a passive attitude is the most effective, since the aim for me is to have a productive conversation, where both people come out happier, smarter and/or maybe one of us will have a different view. I don't think an aggressive attitude will yield any of those, atleast for me it never does.

But what's the option? To just sit back and let discrimination go on unchallenged? We wouldn't do that regarding other types of discrimination

Certainly not to sit back and do nothing, there are lots of other things you can do. Like getting into government, protesting against companies you know act cruely to their animals(Curious, is there a way of getting meat you're okay with?), helping people transition to a vegan diet, coming up with good vegan recipes, maybe entering them in grubski if you're not muted from that(I heard you were posting pictures of baby animals there?). Simply by not buying meat you're promoting the vegan diet.