Eh, no more than hitting buying products from any multinational corporations. It really doesn’t matter where a company is based or started from, once you get into the kind of upper end of money where there’s billionaires involved, they’re fucking around everywhere.

You’d need to boycott every company that’s publicly traded to be able to use it as an attack vector against billionaire driven fascism.

The way those big corporations and conglomerates are set up means you can’t just pick out the brands that are US based and assume it isn’t going to line the proverbial pockets of those assholes. Partaking in any brand that isn’t very limited in distribution and reach is eventually going to end up in oligarch hands. Even that’s no guarantee you aren’t sending money their way eventually, it just won’t be immediate.