Are VC firms in the US willing to invest in overseas startups with huge potential?
Yes. But the later stage you are, the easier it is.
(Personally, I’ve invested in the “late seed” stage in companies from France (5), Estonia, UK, Portugal, Sweden, Armenia, etc. Although in almost all cases, the CEO was already here at least part-time.)
Once you approach $10m in ARR, growing > 100% year-over-year, in a good space … the VCs will come to you. Wherever you are.
But the earlier stage you are, the fewer that will fly to you, and the more you need to find local investors.