They could try to employ some kind of Apple defense, like, you wouldn’t hit Apple for having monopoly on iOS. As long as it’s not the only solution on the market. And for web, most of time, you could access the same resources and get similar experience by downloading… the apps… wait, they have a monopoly on that, too. Well, they are completely screwed in that case.
You’re in luck because bluesky is literally the only one with that exact feature. Just search for user lists, which you can use to subscribe en-masse, or, conversely, nothing’s preventing you from using them as block lists. There are probably few out there where bots monitor for anyone who ever spoke hebrew, which should fit your purpose