A reminder that Sam Wilson was speaking out against the Accords before Steve even opened his mouth once.
A reminder that Bucky Barnes lived a full two years without Steve by his side. He found himself that place in Romania alone. He decorated it alone. He taught himself how to live again alone.
A reminder that Sam and Bucky love Steve very much, but to say that Steve is the catalyst for their actions is reducing the importance of them and taking away from their character traits unfairly.
A reminder that Sam and Bucky have agency outside of Steve.