If I'm going to be completely honest; I feel like these people in support of such a withdrawal of support (of Israel) are going to have to move the needle A LOT more than a mere 5% to get the attention they want.
Might be acceptable to get a little louder about your issue; and properly educate people about it.
I'll just leave this here.
https://youtu.be/9xn0OHEZZ8Q