I like how rather then dispute the "misinformation" she just accuses Twitter about spreading said information. I guess that's just easier.

If she wants to change people's minds about the vaccine then do the work to disprove what you disagree with and publish that. (I'm referring to something like that recent graph/article going around talking about how many pro athletes have died in the past two years.)

Come up with solid evidence of how that's a shame and write an article about that. The only way you could ever hope to change someone's mind at this point is with solid evidence.