If you're dealing with a commonplace, non-"bizarre" opinion or characteristic, generalize all you like.

If you're dealing with a batshit insane, self-evidently "bizarre" take -- made by somebody terminally online in what is well-known to be an echo chamber -- then it's the height of folly to generalize from it. I'm completely sure that < 0.01% of the reading public shares that weird opinion, so why write about it as though it's indicative of a normal viewpoint or coming trend? That is the height of folly.