Supporting Ukraine isn’t considered being political because they believe this is default mode, it’s naturalized because it’s a US/EU championed and funded cause. Some might mistakenly believe famous people are moved by injustice or human rights but that’s incorrect, they are moved by the reality their ruling class constructs for them and their actions within that reality never has a cost only rewards.
To paraphrase Mohammed Al-Kurd:
In one part of the world, we have mothers complaining about being threatened by some words on a tshirt.
In another part of the world, we have mothers searching through the rubble for their dead children.
Guess who receives more attention?