American fighters are born with a silver spoon in mouth. Home advantage. Fact.

[TitoFan]

No, not "support". But rather you'll hear nothing but the chants of "USA... USA... USA!!!"
That phrase, in itself, is an unsubstantiated exaggeration.

Okay well I didn't expect anyone to think that was meant in a literal sense. It was just a more colourful way of expressing that Americans do support Americans. (I will provide evidence of USA chants at fights though if you really want it? I know several off the top of my head.)

Fair enough.