Just shut up
I mean, I'm sorry that your show was cancelled, but nobody is asking you to constantly pipe up on whom Steve should be dating, if Hydra Steve is deserving of you etc etc. Peggy is a thing of the past, it is just getting annoying.
shareShe made one comment so that's hardly "constantly piping up" and like all of us she's entitled to her opinion.
As she's played a role in these films she has a vested interest. It's also likely the comment was tongue in cheek. Like many people she's also surprised at the hydra thing and expressed an opinion. Your response to her seems a little over the top and makes me understand why she dropped her involvement with social media.