Caitlin Johnstone reports:

In the US-centralized empire, “terrorist” just means “a population which poses an inconvenience to the interests of the empire”. It’s not a real thing. The UK designated Palestine Action a terrorist group because its activists put paint on some war planes to protest a genocide, while an actual, literal Al Qaeda leader has been warmly embraced by western states because he facilitated their regime change objectives in Syria. There are no consistent standards by which Iran’s IRGC should be considered a terrorist group while Israel’s IDF and Mossad should not.

[https://www.caitlinjohnst.one/p/they-seriously-expected-parades-and]

Thus Greta Thunberg can be branded a 'terrorist' for her Gaza aid flotilla.

'Terrorist' and 'freedom fighter' have always been interchangeable, depending on your POV, since the days of the Irgun gang or even as far back as Msada and the Roman Empire.

Terrorist has become a fluid label  - a bit like man or woman - in an age defined by identity politics.