I think it’s people looking for a place with a lower cost of living (lower than the Netherlands, but not necessarily cheap) and easy visa processes. Uruguay is very socially progressive and inclusive. In particular, when they passed trans laws in 2018 and 2019, they made them proactive not only in bringing about equality but also in addressing past systemic harms against trans people.

https://en.wikipedia.org/wiki/LGBTQ_rights_in_Uruguay