Then explain to me the logic behind what the Zhat Vash did, by cutting off their nose to spite their face?
It's somewhat hard to apply logic to extremists, but it's not super difficult in this case. I'll make points.
*The Zhat Vash are laser focused on eliminating synthetic lifeforms.
*The REASON they are so laser focused is they have the knowledge of the extra-dimensional beings who show up ever few hundred thousand years to eradicate all non-synthetic life in the galaxy.
*The Zhat Vash don't particularly care about "their people", from their perspective they have a higher calling and are defending the entire galaxy, not just Romulans.
*The Mars attack had dual benefits of killing a bunch of synthetic lifeforms while ALSO spurring the Federation, probably the largest polity in the galaxy, where they have fairly little influence, to also go about eliminating synthetic lifeforms.
Think of less as "cutting off your nose to spite your face" and more of a situation of cutting off an infected limb to spare the rest of the body. The destruction of Romulus was acceptable, given the outcome of getting the Federation to axe synthetic life.
I didn't ignore it. I said that it was the stupidest way for them to have accomplished that goal. Again, explain to me the logic of getting the Federation to ban AI by sacrificing the entire Romulan race to certain death.
The logic is they don't care about the Romulans, they care about the galaxy as a whole.
A quote from Captain America: Winter Soldier, "I don't care about a ship. I care about the fleet."
A bunch of non-Zhat Vash Romulans died to the benefit of having the Federation ban synthetic life. It didn't hurt the Zhat Vash at all. It DID hurt synthetic life.
That's a win. That's an absolute win.