If you’re attacking someone because of their beliefs, consider it twice. Even though history might be on the side of your values, that doesn’t necessarily justify your attack.
If you’re joining a group of like-minded people in attacking someone because of their beliefs, really really think what you’re doing. Be even more wary of it if it is online. Most likely, you’re giving in to your lower self and you’re just creating harm.
Avoid becoming part of a righteous mob.