So, we might all agree on don't kill and don't steal and treat others as you would like to be treated. But let's move on. Then we could all remain in a childlike way and punish those who explore the realms of curiosity beyond the pure and moral in such a way that they can not show their work to the public, at least not when taxpayers money is funding it. That way, we could become a big Disney byproduct. What appears to be offensive from the get-go does not have to be seen as that, unless a person believes that things should be just so.
Offense only comes when people feel threatened.
I'm sure it's a long list. Any art that captures a point of view not held by those in power is a quick source of contention and Giuliani proved that he isn't really that inspired to broaden his mind past a certain point. The important thing is not to stop questioning. Curiosity has its own reason for existing. One cannot help but be in awe when he contemplates a little of this mystery every day.