[curtainsforus]

>This trend seems well underway already thankfully

On average, for now, yes. Not across the entire national population, though. We're just selecting for the sorts of people who thrive (reproductively/evolutionarily speaking) in the modern high competition/low scarcity environment. Because this environment is very different from the environment, say, 200 years ago, people that are more fit to the current environment are relatively rare now- which is why you see trends pointing towards overall population decline- but those small subgroups are there, quietly reproducing at >2.1 children per woman. As such, over time, they'll come to make up the majority of the population, as the relatively non-competitive phenotypes numerically stagnate or dwindle.

Ironically, the prediliction to be convinced of viewpoints like your own (given things like personality and political tendency have a significant hereditary component) is one of the things likely to be selected against!

The future is a dwindling relative population of midwit liberals, lots of live-fast die-young r-selection chads, and one 150 IQ guy who made a billion clones of himself.