Few people are toxic by nature. It’s their habit to criticize and condemn others without purpose. Don’t fight that.
You can answer them, but it’s like stopping and throwing stones at every dog that barks. You’ll get tired, but the dog never stops barking.
You need a lot of energy to pursue your dreams and goals; if you waste it on useless people, you’ll exhaust yourself earlier before reaching your destination.
Intelligence says that you focus on your vision and let others do whatever they love to do.
Never waste your time responding to people who intentionally want to hurt you through speech. Let them die in the absence of your attention.