These are just about as hot button as issues get. Not the kind of conversation to have with family in a “I’m gonna prove my point dammit” frame of mind, but in a “listening for common ground” frame of mind. As far as that depends on you, you can influence this.
What do you and your daughter BOTH believe in? Talk about that 10x more than disagreements, at least for a while.
When the time comes to try to persuade her away from communism, “attack the left from the left.” Show her how communism actually works AGAINST the world she would like to see. Show her how freedom is better for everyone. But this can only happen when she’s receptive. If she’s not, talk about something else.
You’re supporting your daughter when she needs help, not communism. There’s always hope for reconciliation. Human flourishing in a free world will depend on family, which is why the state works hard to destroy it. Show her what this looks like by turning towards her, not away from her.