As I said earlier this week, “decolonization”, “from the river to the sea” and similar euphemisms necessarily imply genocide.
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'Decolonization' has been in the air a lot recently due to the ongoing war in Gaza but is mainly used to describe the gradual unwinding of European colonialism/imperialism; Wikipedia's article provides a good overview. The term is often associated with Frantz Fanon, who opposed the French colonialization of Algeria, and wrote several influential books on the subject, the most famous being The Wretched of the Earth.
https://en.wikipedia.org/wiki/Decolonization
For Musk to engage in such an abrupt reversal of his stated free speech ideals (and barely-qualified endorsement of white nationalist conspiracy theories yesterday), Twitter's financials must be undergoing a severe erosion.