Do you think your software product, if made in USA, would be bought in France or Germany or Italy or anywhere but North America if you did not have someone who worked in that timezone and spoke that language and knew that culture?

Would those people who did that role be considered an important part of your company, considering you would not have anywhere near the same number of sales from those regions if they did not exist?

To pre-rempt the "I'd outsource it" response. When 7+ figures of revenue(& profit) are at stake, I can assure you that you would change your mind. Or if you would not, the new guy the board hires to replace you would.

The only possible criticism of the UK govt is that they made this bed for themselves by aggressively narrowing the tax base.