If we look at per country per capita emissions [1], we can see that Africa, South America and Asia (excluding China and India) have current emissions below the 2C warming. So yes, they don't need to reduce anything at the country level - simply not increase.

North America and Europe on the other hand...

[1] https://ourworldindata.org/grapher/co-emissions-per-capita?t... Scroll all the way down