Who gets to decide what's immoral and what is only unfair? And just because a French person puts on his consumer hat, does he suddenly cease being a citizen? By granting monopoly rights to one group (the taxi industry) you limit the rights of another group (everyone who wants to get from point A to point B). If the war on drugs, gay marriage, and free love teach us anything, it's that violence can't stop consenting adults from transacting with each other.

> Who gets to decide what's immoral and what is only unfair?

A government, as governed by its citizens. That's what laws are for.