Wrong.
you pay taxes in the country of residence and if there is no bilateral agreement between the 2 countries, you end up paying again taxes in the country of your employer.
In that situation, there is no other choice than to evade taxes as your primary concern should be the financial heath of your family...
If there is a bilateral agreement, you only pay taxes in the country of your employer (for FR, Ireland).
This is one greay area in EU legislation that really hurts pilots and is simply ridiculous. For an airline pilot working abroad, it is often IMPOSSIBLE to be completely legal concerning taxes.
By the way, I paid a very large amount of money for my education, where all other educations in my country are being paid by the government. The exuse of "you knew that before you started" is totally invalid as there is still freedom of education in this part of Europe. That same government does not allow me to even partly claim back this investment by to tax-return. If I would be paying my taxes in my home-country, I would simply be bankrupt.