The U.S. faces challenges the Netherlands does not. Take race for example. One out of every eight Americans are here because their ancestors were slaves. That's not the distant past. Heck, many people today are fighting for the right to commemorate the pro-slavery side of that story. More recently, if Bill Gates had been born in the south, he likely would have gone to a racially-segregated school. And the effects of that are felt today. Black households, for example, have a median income of just 60% as much as white households.

How does this affect a coding conference you ask? Because it affects everything. You don't do something like that as a society and expect that the consequences will disappear just a few generations after you stopped doing it.[1]

So yes, everyone in the U.S. is really sensitive, with good reason. Frankly it's a miracle that safe spaces and sensitivity training are the worst atonement we have to deal with. People in many regions of the world are fighting decades' long bloody wars over less egregious circumstances.

[1] In college I used to be anti-PC. Then when I was living in Atlanta, I walked across one of the streets that historically served as a dividing line for segregation: http://socialshutter.blogspot.com/2012/10/when-street-names-.... I went from my trendy white midtown neighborhood to a predominantly black very low income neighborhood. For me, it was a major "holy fuck everything is fucked up" moment.