Call your congress critter and tell their minions that you are adamantly opposed to this. If they vote to ratify it, you will be adamantly opposed to their reelection.
Anyone know how to oppose the WHO treaty? I found this petition (https://citizengo.org/en/node/212361) but its deadline is already passed.
Discussion
I think the admin is using some questionable method to skirt around congress approving it. Don't recall details.