First of all, equity itself literally means ownership of assets (net assets), how does that become "weaker" in claim than a loan which is a credit vehicle?
Secondly when it comes to Argentina, there's nothing on this planet called "Argentina enterprise" let's not invent one. China can invest money either by FDI aka setup/acquire a Chinese owned enterprise, or give loan to Argentinian government. The latter aka loan has proven to be "weak" not "strong", even "doomed", how come setting up a Chinese owned enterprise say lithium mine extractor is touted by you being "even weaker" than "doomed"?