This entirely depends on where you're cutting off "normal" for "toxic" on either end - but toxic kindness can lead to an echo chamber that builds a false sense

This entirely depends on where you're cutting off "normal" for "toxic" on either end - but toxic kindness can lead to an echo chamber that builds a false sense of confidence, spreads misinformation and generally deprives you of your ability to empathize with other people - toxic negativity can lead to depression and suicide... so I don't really think it's fair to equate the two - both are bad, but one is worse.