Clearly not acceptable. Twitter really brings out the worst in people too doesn't it.
(And as an aside I wish it wasn't the DM reporting on it, I don't like to give them clicks.)
There are ways forward where we can support people with gender identities and protect women as a sex class. But I'm sure social media like Twitter is making things worse, it's not designed to make people empathise, connect, or find solutions. People get entrenched in camps and then shout abuse at each other. While failing to see the abuse coming from their own side because the algorithm isn't showing them that. Horrible place.