Well with short form videos your feed could be something more like a Twitter feed where you scroll through content from the accounts you follow instead of a grid of recommended videos where you click on one that sparks your interest. It is a different experience. Just like you could have a blog where every post is under 140 characters but why do that when you could just use Twitter. (disclaimer I do not claim to understand what has happened with X/Twitter now just assume I’m talking about old Twitter lol)
Donating blood/plasma is a good thing. Economic conditions in which poor people feel obligated to give blood just to make enough money, whilst rich people don’t feel this same pressure, are bad.
I don’t know how exactly private blood banks work (in plenty of countries blood banks are public and presumably non-profit), but regardless, I assume nobody can get blood transfusions if nobody donates. So until the political system is overhauled just keep donating? Your blood donations aren’t the root cause of capitalism