You see in Bitcoin, preventing abuse has always been about making it harder not impossible.
Then maybe it's time to propose change. Perhaps start off this forum, talk about it in Bitcoin Core's github, and if you see recognition submit a BIP. One thing's for sure. You are not going to change anything if you continue calling it "Ordinal attack" in an Internet board.
"An internet board" is just as important as anywhere else, after all Bitcoin network is run by regular users not by devs. First people have to realize what Ordinals is then we can move on to making a change. So many users still think they are creating a token with this exploit!
Not to mention that I'm already doing that elsewhere too and am already rejecting these malicious transactions myself.