The 51% is misleading. What would be important to know is how many immigrants were founders with a denominator of how many founders were there. The stati

The 51% is misleading. What would be important to know is how many immigrants were founders with a denominator of how many founders were there. The statistic here is: "51% of unicorns had at least one founder who was born in another country". Palantir, for example, is included as an "immigrant-founded company", which it is, but Peter Thiel (Germany) is one of five co-founders. So with a subset of one company, only 20% of founders were immigrants.