I’ve told you that you’re wrong. FOM is under UK jurisdiction, it’s a UK company. And the Concorde Agreement is answerable to UK law, not US law.
If Andretti wants in, they’ll have to challenge it in UK courts, not American ones.
I don’t think I can dumb this down any more for you, I’m sorry.
And no, since you’ve been dodging the question, clearly you aren’t. Answer it. Do you think the UK has the right to tell the NFL that they must accept British teams? Yes or no.