Nah the article I linked didn't really touch on racism at all, just the assumed kaep sux meme as a passer. It was a little more in depth than that, guessing you read someone's political piece article trying to push that as the reason he wasn't signed and why people crap on his ability.
Just like I'm not going to trust his word to say he wants to play, I'm not going to trust what teams "claim" they offered him, especially when they're very nebulous on what role was discussed, etc. Looking at the Seattle one someone mentioned above, I actually don't think that would be a situation a team would want to sign him at all. If you have an established starter, bringing in someone like Kaep who is somewhere at that borderline starter level isn't the best dynamic to be bringing in. Ironically, I'm going to use the Skins as an example (ironic since Smith was our starter going into the year). It makes far more sense in that situation to have a defined backup in Colt McCoy (whatever he thinks of himself, he's not starter material, he's a career backup.
Frankly I'd even consider Peterman over Sanchez. I mean it's at that level. On the other hand, season is over anyways, even winning another game or two would be a miracle so why not just punt on the year, don't expect much better next year b/c Smith's recovery could take awhile...just trade back a lot and punt on next year too. Sucks to say, but we're kind of stuck with Smith's deal for another year or two.