Its worth remembering that ICE continues to exist even when republicans are not in the white house.
You can and should oppose ICE all the time. Less deportations happen when people resist. Direct action is more effective than voting. The work doesn’t stop when your pick is in the office.
expecting activism from the party is a fools errand. That is not a thing the democratic party would consider, nor is it the role of political parties in most countries.
We need to do the activism. We need to pressure governments and individuals to do the right things, and make it more difficult to do the wrong things. That is our power. You cannot rely on someone else or some organization to do it for you.