That is certainly not true.
Here's how Scripture speaks of the Church. It is obviously not a Satan-controlled entity.
We're nowhere told to leave the Church. We're everywhere told to build it up. We're even told Christ loves this Bride of His, this Church.
And we're told He will feed, care for, and purify her, which logically entails that she will need to be purified.
Ephesians 5:29
No one hates his own body, but feeds and cares for it, just as Christ does the church.
In my opinion Christ was not talking about the RCC.
L