Yes and no.

I do have investments in an index fund that is ethically focused and aligned with my personal morals.

On the other hand, one of my main reasons for trading stocks is to express my beliefs about world events. Buying and selling defense companies is a major way to express those beliefs. Since my own actions are not actually doing anything to contribute to the instability, and since I vote and speak my anti-war stances, I don't really feel bad about doing this. Remember, buying and selling shares are buying and selling shares already issued... it's not like you are directly helping the company fundraise.