This is confusing whether it can be blocked and whether it would be effective. Every time you do something unique, you of course become identifiable. But the idea is of course that you are not the only one blocking these scripts which will only make the entire group identifiable. You could for example try to block those scripts with a widely used ad blocker which would make you not stand out any more than any user of that specific ad blocker. It would probably not be too effective as URIs and file hashes or whatever ad blockers use are relatively easy to change, but in principle you do not have to become uniquely identifiable by blocking fingerprinting scripts if enough people are doing so.