I don't think it's offensive (I agree that the yellow is hard to read).

FWIW, the thing I don't like here is that someone wants to censor you because s/he doesn't like your tagline. Too bad! You're not advocating illegal actions, you're only expressing an opinion. If no one was allowed to say something that might be offensive to someone somewhere, no one would be allowed to talk.

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Just because you put tap shoes on an elephant does not mean it can dance.