He asserted that "we live in a bully culture right now" and emphasised that confronting bullies, including Parkinson's, requires "resilience and courage".
Fox connected the film's antagonist, Biff, to real-world bullies, stating that "time is a bully" and that the movie's themes resonate with current audiences.
He previously compared a prominent political figure to Biff in 2020, a character Back to the Future creator Bob Gale confirmed was partly inspired by the same individual.
Diagnosed with Parkinson's at 29, Fox later founded the Michael J. Fox Foundation for Parkinson’s Research, which has raised over $2.5 billion for the cause.