Well in fairness, if someone has never heard it pronounced before & is just reading "Eire" I can understand how it might be pronounced in 'the most extraordinary ways'

Heck, I've been in some places in London that the pronouncination in no way shape or form matches the spelling! I give people a break on stuff - unless they've been told the correct way & then continue to do it the wrong way. That's just bad form.
To the OP, I'd echo
GoldCircle and
mjm's advice. Good luck.
Cheers.