I think Brazil (or France, or Canada, or any country, really) should try to recruit Trinity Thomas. I could watch her gymnastics all day and she would be an asset to just about any team on the planet with her clean, consistent gymnastics.
This is no longer possible.
After the Belamericans in 2015 and the recruiting done by Azerbaijan around the same time, the FIG cracked down on nationality switching.
In order to compete for a given country you have to be a citizen of the country or have family ties to that country with a route to citizenship. Or you have to have residence in the country for one full year with legal proof of residency (so Kwan and Dickson would be ineligible never having set foot in Belarus).
Also, there needs to be a full two years since you last competed for your previous country (this does not apply to Thomas since her last international assignment was in 2018 I believe).
Trinity Thomas would be unable to meet any of this criteria, as her parents are US citizens (no dual citizenship) and have permanent residence in the US. She could potentially move to another country to get one full year of legal residency, but Paris Olympics are July 2024. So she would need to establish residency shortly after NCAA and spring semester have concluded. This of course would only apply for any countries that qualify a full team. It is too late for Thomas to change nationalities in time for Worlds this fall, which is the qualifier for individuals, since she would not get in a full year of legal residency.
The difference is that Sydney Barros (PUR) and Aleah Finnegan (PHI) were able to switch nationalities because 1. they had not competed internationally for the US for two years (both last in 2019) so they could switch. 2 they both have a parent from that country, Finnegan’s mother is from Philippines and I think Barros mother is from Puerto Rico.
Danusia Francis was able to switch to Jamaica because her father was born in Jamaica and he held dual citizenship.
With these rules, if I were a gymnast competing I could switch from US to Canada because my mother was born there and has Canadian citizenship. She moved to the US when she was 6 and has US citizenship so she has a dual citizenship.
However, my cousin does not since both his parents were born in the US and unlike my mother, his mother was not born/lived in Canada.