Would you tell Palestinians to stop working on 'killy stuff' for moral/ethical reasons?
Others will have different opinions, obviously, but this is mine.
Now, cutting friends and family off over something this just means you do not want to tolerate people with differing views and opinions on this.
It's more about the side you are on rather than some abstract moral argument against working for companies tangentially related to the defense sector.
But feel free to petition literally all countries to remove words like defense or security from the names of their militaries.
Would you tell Palestinians to stop working on 'killy stuff' for moral/ethical reasons?