Most of these fleeing leftists are personally protected from the end results of their toxic ideology and politics due to their fame -- in her case quasi-fame -- and personal fortune. It's EASY for them to self-righteously virtue-signal without ever risking any personal consequences; and so they do.
If she were to receive a tasty Hollywood movie or television role offer, however, she'd fly back to the states so fast that she'd break the laws of physics. That's the DEPTH of leftist commitment to . . . anything.