The characters were not as they were. Grounders kill most of their life then suddenly, in the early seasons they changed just like that. I mean there is no good reason. Then there is Clarke who also contradicts here character. One thing she is saving her people and the not. And then yes. And then not.
The plot is good, the way everthing connects with everything. The actors were good too.
But i think its the lost of character that make this garbage.
The only character who never changed i think is octavia and raven. Indra too. If they're loyal then they stand for them. Not change sides.
For others, they can float themselves. 😂