In closing I leave you with this delightful message I found on Tumblr today:

Wakka gets a lot of crap for being a bigoted dingle douche, and while that may be true for the first part of the game, let us keep in mind that his attitude is the result of years of conditioning by Yevon. Yevon made a point to convince the people of Spira that the only way to get Sin to stop terrorizing their world for good— the only way for their loved ones to stop dying— was to atone for their regressions. Machina is one of those regressions, by Yevon decree, and the Al Bhed are machina-crazy, therefore, the logical conclusion there is that the Al Bhed are “supporting” Sin, in a roundabout way. Wakka wasn’t going out of his way to be hateful, he was simply guided by hope for a world without Sin, and fear that that world could never come about if people like Rikku were left unchecked.

Does that excuse his actions? Of course not: Lulu and Yuna are pious as well, and they are much more accepting than Wakka… but it just takes him awhile to come around! Slowly, as we see here, he starts to see the light, and by the end of X-2, he even gives his kid an Al Bhed name! So, let’s not judge him too harshly, ya?
^ this, my friends, is good characterization.