I am a political commentator, as well as an activist. This is why I cannot remain silent:
For someone like you, you would probably want to post publicly, to as many platforms and protocols as you can, so you reach a wider audience. But you would need to choose a platform with better permissions and moderation tools.
For example, you would want to control who can comment on your posts and be able to delete comments that are toxic. Mastodon does not have this capability, but most platforms that have threaded conversations give you that ability.
@HistoPol
Not exactly accurate. Anyone can copy and paste your words into the post box and quote you. Some platforms make it easier than others though.
Also, Mastodon is rumored to be including quote posts soon, so even on Mastodon, people will be able to quote you.