That comic is not applicable. You don't have to speak english to report or see a UFO. That doesn't make any sense. What it does tell us (to follow the language thread) is english-speakers seem more susceptible to believing they saw it. It's a cultural issue is the implication.
This doesn’t prove anything other than susceptible people are relatively evenly distributed.
The point is the susceptible people are heavily concentrated in the US and the UK. Arguably Australia/NZ. How on earth is this map evenly distributed to you?