You might be holding on to 'outdated' definitions. Here they are as they stand now:

Troll: Disagrees with individual or community. No/little/inadequate attempt to soothe egos potentially damaged.

Toxic: Disagrees and presents an alternative that is dangerous to the ego of the individual or community.

This comment is now considered "trolling" and I, a "troll".

Edit: An especially correct "troll" (as above) can be promoted to "toxic" without presenting an alternative if the disagreement is particularly damaging to the ego of individual or community.