Náhuatl and Mayan Language Renaissance Occurring in Mexico

I always pay attention to efforts of restoration for endangered languages. Unfortunately, it seems to be an awfully difficult thing to do. In my home country, Ireland, we have been trying for around a century to restore/preserve Irish. But it has gone fairly poorly. It seems that falling below a critical mass of speakers, the language is nearly always considered 'useless'/'ancient'.

It seems to be very common across countries to have a bi-lingual population. But this is almost always the case where the native language is globally uncommon. So the population see the value of learning English/Spanish etc.

It also appears to be possible to keep languages healthy, active when there are many competing, but regional languages, not used anywhere else.

But it seems near impossible to revive a language where the majority already speak a globally useful language.

The alternative, unfortunately, seems to be to force the language through authoritarianism, like in the case of hebrew.

Irish is different as it was largely dead by the 19th century.

On the other hand, Mayan languages and Nauhatul remain actively spoken across Southern Mexico and Guatemala.

I remember a decade ago the USCIS went on a hiring binge for Mayan interpreters becuase there was an influx of Guatemalan undocumented immigrants due to the economic collapse following their domestic instability.