So that is why fight fans hate on Francis- because they have ethical qualms about Saudia Arabia? That is beyond laughable.
You hit way off the mark on this situation. There are corporate taxes and such in SA, but there is way too much money for them to require personal income tax from citizens, which they do not; look it up. The government's oil income is over a trillion a year, which is why they can pay this big money to fighters, and why it is silly to say they are using taxpayer money for it.
Now if you want to talk social issues, surely, they do a lot of objectionable stuff, especially to women and non-Muslims. One could take an ethical stance on this, but I think a good portion of fight fans would say that is being 'woke,' and wouldn't give a shit (especially about women, who just recently gained the right to drive cars on roads).
I think right now it is a good opportunity for fighters because the alternative in America is sleazy promoters in the likeness of Dana White, Don King, etc. One could take the stance that fighting for crooks in America is just as bad; at least the Saudis are willing to pay the fighters well.
Nothing in the fight game more unethical than letting people get concussed for peanuts like the UFC does. People take that same kind of KO in the UFC, and for 10,000 instead of 20 million.