No, im not, you are the one trying to claim that a movement that has existed for decades just popped out of nowhere yesterday due to political correctness.
The term itself was coined by either Spencer (white nationalist) in 2010 to refer to white nationalism.
There was no such thing as BLM, tranny bathrooms, 100 genders in 2010 and its not like Spencer came up with his ideas out of thin air in 2010.
Thats not what i am doing. Im not pegging them to ideas from the 1940s, but ideas from the late 70s up to the 2000s.
You are trying to conflate means with the ideology.
1.- Alt-right is not just against political correctness or "saying it like it is", it also couples white nationalism, protectionism, racialism among other things.
2.- Social media is what made it mainstream, like with many other fringe ideologies. Again, you are conveying the means in which said information reaches you with the existence of the movement itself.