This phrase is mainly used and known by the euthanasia advocacy movement. This might also be bad, but not as bad as the association with Jim Jones.

Yes, this is a toxic clickbait meme-filled shitpost.

No, toxic emotions are never, ever a winning strategy. All toxic thoughts will always sap motivation, reduce intelligence, weaken decision-making, and impede collaboration. Never let yourself be turned toxic by anything, anywhere, any time, no matter how charismatic it might appear in the heat of the moment.