Most tankies are accelerationists. They likely voted Trump not because they like him but because they believe he will accelerate the collapse of the US and they can have their communist revolution faster.

To that end it works in their favor to attack liberals whose goal is to prevent collapse of the current system because they know it will put marginalized communities at the most risk if that does happen.

Tankies are class reductionists and don't care about marginalized communities except when they can use them as a cudgel against liberals. After they achieve their goal they drop their cause entirely. See how silent they are about Gaza now that Democrats were successfully kept out of power despite the fact Palestinians are at far more risk now.