Besides the premise of this movie being bad, the plot is objectively convoluted and unentertaining.
It's not an abosolutely horrible movie, but it's by no means a good movie. And the Oscar nomination highlights the bizarre obsession that segments of American society have developed over the past decade with narrow socio-political movements that only impact a small subsects of society (those stories and experiences are important, but why did they become the total focus of almost every institution in American society over the last decade).
At some point, hopefully, we'll start telling stories about common, unifying experiences again.