Freedom of Speech is not the issue here.
Visiting an enemy nation during time of war (Yes, I KNOW it wasn't a declared war!) IS the issue. Had Betty Grable traveled to Germany during World War II to give aid and comfort to the Nazis she would have been immediately arrested, tried, and incarcerated upon her return. And rightly so.
The statements she made about our returning servicemen, while she had a right to say them, were unforgiveable. That alone should disqualify her from receiving any "honors" from the film industry. That narcisistic bunch has very little in common with the average American, so she'll probably be very near the top of their list of 100 most influential women.
Every serviceman who is able ought to stand in protest outside the award ceremony.
Rest in P___ , Jane
Regards