I want to make a few points.
Why the profanity? Why do you feel that profanity is a part of "our" culture? And besides, even though I listen to hip-hop, I don't use rap slang, if you want to call it that. So it's not my culture, it's your culture. Profanity is used in most cultures though, so attatching it to a specific culture is wrong to me. It's like saying all english words to do with botany are part of the weed culture, just because people who grow weed will have to use some of them.
Profanity has nothing to do with hip-hop. If you read up on, and watch documentaries about the history of hiphop, you'll see that rappers back in the days didn't swear. The profanity in rap is a sub-consequence of the merging with a certain culture in america, the african-american culture. Over the course of the past 20 years, as no surprise to you I'm sure, the african-american culture has been a victim to a lot of poverty-related troubles. It's a known fact that people are generally more ruthless in poor regions. Now if I stop being so politically correct for a minute, the whole world knows about black gangs in america. That's where the profanity came from, not hip-hop. Low-confident alpha-males who aspire to be the craziest, most violent on the block. Bigger gun = more cool points. Hip-hop evolved out of blues, jazz, reggea and house (depending on who is telling the story of hip-hop). All four genres spawned the artists that would later become rappers anyway.
Furtherer, this crusade for free speech is ignorant. If you fail to see how a word can be more than just a word, I simply can't help you. There's this argument that if you're angry, you might say "fuck". But if you say "refridgerator" in the same tone of voice, in the same manner, while thinking exactly the same thing as you would have thought had you said "fuck", the emotion you are conveying is still the same, and that the words become "just words". That's a nice way to create your own logic, but it's not right. Certain words trigger emotional associations in people. For example, most people have probably been called an ugly motherfucker at some point in their lives. This more or less "traumatic" experience (face it, you remember all your real fights as a kid. Traumatic by definition, not by the standard use of the word) gives a negative association with the word. As such, people who are against profanity aren't always mindless drones out to kill the fun for everyone else. Profanity is a pointless feat of human communication. It is a root of evil and negativity. Why would you want to endorse that with a business that, if your ambitions were to ever blossom, one day will have to set an example? How will you present new business ideas to other corporations, or a board of directors, if new business ideas means a product called "McNigga" for example?
Or to flip it around, what's the purpose of being pro profanity? What do you hope to gain from it? What's your personal motivation? Because you made a point out of having no bans or regulations on profanity. Why is it so important to you to be able to use profanity? Because it makes you feel tough, cool? Because you simply can't be fucked going into a transition? How are you enriched as a person by the use of profanity?
I swear from time to time when the situation calls for it, but I don't do it purposely. It's my natural reaction to certain things. I do try to tone it down though. I find it difficult to talk to people who swear a lot because I stand there next to them with a high desire to impale them. However, the key point here is that I try to contain myself at all times because even though I'm not anti-profanity, I am able to grasp the negativity surrounding it. I'm still one of the cool kids.