How to totally get rid of toxic situation?

Staying away from it knowing it's more harmful than positive for you

Call in specialism people to remove toxic waste

RUN!

Refuse to participate in it. Cut that person out of your life, it isn't worth the anger and resentment to maintain contact.

Walk out

Walk away …. 🦋

Moving far away from the place so even the fumes don't affect you.

Breath cleanse ... and let go completely!

Divorce worked for me.

Depends on the circumstances but I try to avoid it or those involved if I can.