>>510872732They can't compete. The asians have discovered that Olympiads are one of the easiest way (highest return to price) of getting into an Ivy League. Just getting a bronze medal at any of these competitions will increase your chances of a scholarship at a top university immensely in the US.
This already happened with the Spelling Bee (where you are guaranteed 50k $ + sponsorships + scholarship) and other standardized tests (SATs) as well.
As a result either these competitions will get a lot more harder (thus locking out even more Whites) or a lot easier (like the SATs).