I think it might suggest a call to safeguard or support comics featuring trans elders, but without more context it's hard to say for sure. Maybe it's related to raising awareness or promoting acceptance of such representations.
Honestly, 'must protecc trans elder comic' is quite ambiguous. It could potentially indicate a commitment to protecting comics that focus on the experiences or stories of trans elders, perhaps to ensure their visibility and positive portrayal. But it's difficult to be definite without additional details or clarification.