It will be very good if Developers kill ordinals and inscriptions, I really hope it won't be only idea and will be released because Ordinals make it impossible for people to use Bitcoin to make Bitcoin transactions. Also, by killing ordinals, they'll lower the number of people who fall for these scams. I know they may move on different platforms but at least Bitcoin will not feed these scammers.
The only reason why these scammers insist on using bitcoin blockchain for it is to be able to hype up a dead concept (ICO) by associating it with the name Bitcoin and get some newbie victims who don't know any better to buy that fake garbage in a fake market so that they can make money!
I agree with you that not only bitcoin blockchain but word blockchain is used to hype many meaningless things.
To be fair, I don't know much about NFT and Ordinals, I have maybe only seen one or two articles about them on Cointelegraph and that's all, so count me as a person who doesn't know about them. Right now I am checking the marketplace of ordinals and NFTs and I'll be fair, I can't understand why I should pay money for them and why I should hope that price of ape NFTs or Ordinals will go up.