Latino solidarity? Over what, the language? No, not even that.
The only so-called Latin/Hispanic solidarity/block/monolith is an imaginary one created by politicians. Even within their countries there's, SURPRISE!, division like there is in the USA and everywhere else. Race, ethnicity, religion, political parties, socio-economic class, etc, are all factors in Latin countries also - in fact, often even far more entrenched and bigger dividing factors than here, to the point of practically approaching caste systems.
Welcome to Planet Earth.