blocks will start to become filled constantly, fee's will go up, micro transactions will be forced of-chain ( or to complex to really be worth doing ) small transactions (<100$) will be more costly, might get to the point where fees are not competitive ( people start using paypal or the likes to move money more efficiently), suddenly buying everyday things with bitcoins becomes a funny idea, Bitpay will go out of businesses, seeing how a large % of speculation was speculating bitcoin would one day become a use able currency its value will implode, bitcoin will revert to its 2012 state / value, and then its downhill from there as ETH accidentally becomes a better form of currency without silly blocklimit debates stopping there scaling toward world domination.
Yes, because everyone knows that censorship-proof money has no value unless you can buy candy bars with it.
Censorship-proof money that scales and can buy candy bars and bitcafees is much more valuable though.