I'll be blunt here: I was leaning towards agreeance with you, that there are far too many people with ridiculously offensive names. Then I saw this argument, and I have to say, my entire opinion right now has swayed more to believe you're simply looking for a "mountain out of a molehill" scenario in bringing it up, and that you're obviously willing to compromise your own argument through your wording for the sake of your argument.
Yes, "Mein Kampf" is a pretty high-profile/high controversy book...but the book on it's own is honestly not on its own a designation of hate speech. "GasTheJews" is offensive towards Jews. The N-word spelled with q's instead of g's (impressive mods, you even filtered that variant!) is offensive and anti-semantic towards black people. "Mein Kampf"...there's really not a reason to be upset over it. Hell...even taking the name "Hitlurr" isn't on its own obscene enough to be considered hateful, though if a Jew were to join a game with or against this guy, they'd still likely consider it their sworn duty to murder them or bait them into dying as much as possible, depending on their team, and I honestly couldn't be mad about it. >.>
Your argument in and of itself though is what's ruining your overall point. There's a line that needs to be made - either "Mein Kampf" is not obscene enough to be considered hateful on its own, or any name containing religion, pride, or politics should all be considered hateful and oppressive. Yes, I will indeed compare "Main Kampf" to all of those, because all of those are controversial in the same type of way, but to different audiences. If I, for example, were to get ROYALLY BUTTHURT upon seeing the name "Hamdullah" (Saudi for "Praise Allah") would it be any different from hating "Mein Kampf"? Not really. Same if I were to be upset about "oBOMBa"(I think that one actually is a name in NA. >.>) Neither of those on their own are really hateful or anti-anything...neither is "Mein Kampf." The projection some people would place upon those names based on their thoughts of them are not something the people with those names control. Those projections are on the people projecting them.