Joseph
“Wasn’t the haskalah conducted in Yiddish? …Yiddish theater?”
Those aren’t Avoda zara. A practice taken up for Avoda zara like riasing hands during davening, korban on bama becomes assur that is why trees were stopped .
“why did we stop Aramaic?”
We didn’t stop it , it is still used for much of davening . with time it fell into disuse I don’t think there was an effort to stop it.