From a practical standpoint-
Even if you gussy it up, and donate it all to charity, it's still tasteless. Honestly, I think that if people see this, they'll be less likely to think favorably on whatever OTHER projects you do.
Further, shirts won't ship for 2 weeks, which means that by the time people get the shirts, they won't be able able to wear them to show support in the "heat of the moment" That makes it really useless.
Further still, you missed the "market window" if you will, which was entirely last week. I feel dirty even typing this.
Oh, one last practical point- I don't believe you have the copyright on that image. Jonathan Mak does, and he didn't give a license for it to be on T-Shirts. He has said that no money should be made from it.
It doesn't work morally, it won't work as a business, and it makes you look bad. Just.. Take it down..
