Why do conservatives have this thing where they romanticize the past and claim we're inferior to our ancestors?

They're very adamant about us basically being inferior in every way and will flip out if you question this narrative. They'll say culturally we're worse, we're less intelligent, less good-looking, less hard-working, less mentally strong, lower testosterone. They'll say we're dumb because we can't grow food, but our ancestors couldn't fucking read. It's like they hate themselves, what gives?
Why do conservatives have this thing where they romanticize the past and claim we're inferior to our ancestors?
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