no you don't understand. you implied that there are no harmless jokes against blacks and gays. then you immediately went on to say "everyone gets joked about on tumblr, its all fun and good"
Okay let me break this down for you:
There are jokes on tumblr
Pretty much all of these jokes are harmless
The post replying to Das was sarcastic
You mistook the 
sarcastic post for me actually saying that black people and gay people don't get harmlessly joked on
I know what my last posts have just said
Alternatively, in the world that is outside of Tumblr:
Everyone gets joked on, offensive or not, except for straight white men
Are you just trying to make a point now or do I have to legitimately alter something in my posts to make you happy because I'll go that far.