People who attack with words are typically afraid.
Use your words to rise above the noise.
Do your best not to engage.
Rather, meet hatred with love.
Easier said than done;
However, Scripture gives the best advice:
"Finally, brothers and sisters, whatever is true, whatever is noble, whatever is right, whatever is pure, whatever is lovely, whatever is admirable —if anything is excellent or praiseworthy— think about such things." (Philippians 4:8)