Racism is not dead. Definitely, there are these biases.
Most languages spoken by a few thousand people are so complicated they make your head swim; a Siberian yak herder's language is much more complicated than a Manhattan bond trader's.
Rap and spoken word have reawakened the country to poetry in itself. Texting and Twitter encourage creative uses of casual language, in ways I have celebrated widely. But we've fallen behind on savoring the formal layer of our language.
The only way that residual racist feelings could affect legislation, in my opinion, is through a lack of priorities, from not doing things.
Texting is very loose in its structure. No one thinks about capital letters or punctuation when one texts, but then again, do you think about those things when you talk?
'LOL' is one of several texting expressions that convey nuance in a system where you don't have the voice and face to do it the way you normally would.