But that leaves us back where we started doesn't it? If it's fair game to attack civilian infrastructure which was used or could be used to make the weapons you are getting hit with - then why should it make a difference if it's in the Netherlands? Or in China for that matter? I'm pretty sure that if Russian weapons were made in a state technically not in the conflict (say Belarus), that wouldn't stop Ukraine from sabotaging them.
I'm not denying that Russia was the initial aggressor. I am saying enough lines have been crossed that we really can't fault Russia if they wanted to sabotage weapons production in the west.