The density simply isn't there, and the infrastructure is pretty horrible aside from some exceedingly small areas of the city proper, and of course the amazing bike paths (which typically are not useful for anything other than leisure). If that's what you consider a high bar for "bike infrastructure" in the US, I think the situation is pretty dire.
I moved to Chicago largely due to transit-related reasons, and the bike commute here isn't exactly stellar - but it's at least night and day compared to the average suburban-oriented city in the US.
That said, spending significant time in the Netherlands may have raised the bar too far for me to really think of any US bike infrastructure as being much more than an afterthought at best.