Earlier quoted context omitted.
Are they? What’s the alternative?
An alternative will be produced if youtube becomes a hassle to use. 30 years ago people watched television, but the ads became too numerous. Now only boomers watch it at all.
Nebula is trying to bill itself as an alternative, but I am not convinced it will gain the traction it needs to become what we might call a YT alternative. Users have griped about the ads on YT for years now, yet they keep using it, which just affirms that YT can inject as many ads as it wants without risking its user base. By continuing to use a product we complain about, we are giving that product permission to continue doing things we don't like.