I didn't like this one at all. Way too preachy. I didn't see it as anti-conservative or anti-liberal: both sides were painted as having plenty of bad traits. I'm neither or both depending on the exact topic at hand. Too often, people approach political parties like they approach sports teams--team loyalty trumps clear thinking, and party members are encouraged to follow party lines and villainize the other team. But... that's a whole nother barrel of monkeys.
Rather than anti-conservative or anti-liberal, the message that I saw throughout the whole thing: "discrimination, for skin color or religion or any other reason, is bad". Which is a worthwhile message, but not it's been done better in other stories. If it'd had a great story attached to it, then I could cheer for it, but the story only existed to support the preach.
Also, I was confused for a little while about "Columbia". Since it was audio, I assumed they were talking about "Colombia" the actual real-world country. I suppose this would've been clearer in the original text form, but a country name that was audibly not an existing country would've helped clear that up.
It probably didn't help that I literally listened to this back-to-back with the newest Pseudopod episode "Charlie Harmer Looks Back", which began in a diner in the 50s, talking about an interracial couple during segregation, and that story also didn't do anything for me.
I really would've liked having someone that I could root for. While the protagonist was supposedly less racist than his mother, I just never really believed that. He had a Native American girlfriend, supposedly, yet the only thing he ever says about her is that she is Native American, her name is Nona, and she is his girlfriend. How heartfelt. Their relationship felt very hollow, and maybe even non-existent. Maybe she doesn't consider herself his girlfriend at all, which would explain the lack of any sort of further information about her. Though he disagreed with his mother, I got the impression that he was not disagreeing with his mother because he felt that she was wrong, but because she was his mother. He uses Nona as his proof of his non-Racism, but by using her only to proclaim his belief and not treating her like a thinking human being he is no better than his mother. So I had trouble really rooting for the guy.