Is it worth it investing in non US markets?

Whats your tale on this? Im a non US investor: When US markets go up international markets go up less, when US markets go down, internal markets go down more, long term it doesnt seem to pay off. I'm a VT guy so far but within vt in the top 25 position the only non US companies are the below, wouldn't it be better to just be all in like VOO and buy those separaetly if even wanted? Among VT's top 25 holdings, these are the non-U.S. companies (and they dont move the needle anyways within the fund