The extreme right is delusional, like people @ church channeling spirits, think clean coal, bringing back factories, etc. the idea of MAGA sums it up.
Extreme left is depressing & divisive, they're pretty impotent @ gathering troops and obsessed w rating people based on levels of oppression & with fringe causes rather than focusing on raising all boats (basically infighting & purity testing makes it hard to win).
The right also is better @ appealing to people's desire for fixes to short term actual problems : economic, inflation, fearfulness (of job security, foreign influences, crime, etc).
For many climate change is still abstract and hard to focus on when you're drowning in economic, social & emotional problems that feel more pressing.
Not that the left focuses much on environmental issues anyway.