That was a French intelligence action on foreign soil, so it really can't tell you much about France's willingness to retaliate against foreign intelligence actions against their own citizens.
That was a long time ago, under an entirely different government.
I think that Macron, being the outspoken politician he is, would probably do something, at the very very least to save face from the far right party who would be all over this.
The West is a very broad term, including countries as diverse and as wildly different as Belgium, the US, Denmark, Germany, France, Spain, UK, and even Australia and New Zealand.
Germany for instance had the decency to ban arms exports to Saudi Arabia.
https://en.wikipedia.org/wiki/Sinking_of_the_Rainbow_Warrior