so it's like being strong armed into buying the native base crypto just to do anything with your tokens. another reason i'm not a big fan of ethereum "tokens" 

Could this happen? I mean blockchain could definitely used for many stuff, but as a data to sell for ads? I am not entirely sure. It is definitely a big data network there is no arguments there, and that data could worth something if it can be used, but how could it be used? That is a difficult thing to handle. I mean if we could have some new sort of blockchain where you could see ads for transactions instead of fee's, then it could maybe work, but that doesn't really sound like a normal thing, or at least something we haven't seen yet.

I mean people could rather pay for the fee, or just watch a 30 seconds video for example, or they  could see 5 ads for 10 seconds each or something, and do it for free, would that even work?

Do we have pay-to-use blockchains now? I don’t think so, if what you consider as “pay-to-use” are networks that charge their users with transactions fees every-time they make a transaction (which are all of them by the way)then we’re going to have an issue indeed lol. But I don’t think the reason why bitcoin couldn’t be adopted on whether it is free to use or not, it’s all because of the lack of information and prejudice against it which will proliferate amongst those who do not know better, and just like germ theory they’d contract that skewed ideology to other no-knowers until the whole world either knows about bitcoin, or doesn’t and actively hates on it.