Well...Because... [She's just...sure that they will, eventually...]
Because I think a lot of people will listen to what we have to say, even if they don't agree at first. The only people I can think of who probably wouldn't listen to one of us are the elves. Regal's important, and people think Zelos and I are important because of the Church of Martel. The Professor and Genis are traveling around speaking in the villages and towns to tell the people that not all half-elves are like the Desians - the half-elves we feared. Sheena is really important to the people of Mizuho, and Presea is doing well, so people would probably listen to her too if she told them. Lloyd went to collect exspheres, but I'm sure he's doing what he can to spread the word, the idea, that humans don't need to fear half-elves. Sure, you're different, but humans aren't all the same either.
action!
Because I think a lot of people will listen to what we have to say, even if they don't agree at first. The only people I can think of who probably wouldn't listen to one of us are the elves. Regal's important, and people think Zelos and I are important because of the Church of Martel. The Professor and Genis are traveling around speaking in the villages and towns to tell the people that not all half-elves are like the Desians - the half-elves we feared. Sheena is really important to the people of Mizuho, and Presea is doing well, so people would probably listen to her too if she told them. Lloyd went to collect exspheres, but I'm sure he's doing what he can to spread the word, the idea, that humans don't need to fear half-elves. Sure, you're different, but humans aren't all the same either.