I've just watched the first third of this (original source linked by squirrel) video.
tl;dw This is a great idea: Cory Doctorow explains how
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all the countries the US trades with were forced, in their trade agreements with the US under threat of losing the US market, to pass their own digital copyright anti-circumvention laws so that US big tech companies can seek rent and collect the personal data of citizens of those countries with impunity, and
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Now that trump has imposed all these tariffs on them and violated the agreements anyway, there is no longer any reason for them to to keep those laws on the books, laws which only hurt their own people and help US tech companies. He explains retaliatory tariffs only hurt their own people, that the best response is for other countries to stop protecting US oligarch and repeal those laws, which will help their own entrepreneurs and citizens, and withhold billions in rent to the US oligarchs.
And that's just the first third of the video, but I stopped to post this before watching the rest. edit update: yeah the whole video is worth watching.
I know you can do it from mastodon, so I suppose you could also do it from lemmy. For example if I want to comment on a peertube video (without having an account on the peertube instance), I just paste the url of the video into my mastodon account's search bar which brings it up in the results as a post, and from there I can Favorite it and/or reply to it. The fav adds 1 to the likes and the reply appears as a comment on the video.
Also from that post I can click on the profile and then Follow so all their video posts from then on will show up in my timeline.