Eusebius of Dorelayum was a layman in Constantinople, he was present in the Haiga Sophia when Nestorius went to the pulpit and preached heresy for the first time. He also later challenged Eutyches for monophysitism. If you remember, it took Rome years to condemn Nestorius, but Eusebius recognized heresy instantly and challenged him from the congregation. He didn't sit in the pew twiddling his thumbs saying "ooh I can't fink he's a hewetic, I gotta wait till he's decwaired wone fwom Wome."
Secondly, Modernism is Modernism, it is the same heresy that Pope Pius X condemned, if what came from V2 is not a heresy, and Leo XVI is teaching it, you can't judge as a layman as you said, and you must submit.
More dogmatic sede low IQ remarks. This is almost too easy.
My friend, despite all your sneering, there is a reason that the Church formally condemns heresy.
And no "modernism is modernism" is not true. JThere was semi arianism etc. Look it up. Do you know anything about the history of heresies?
please go get a basic education on these topics and come back to me.