The RCC needs to clean up a lot of its false teachings first.
The real question is how many will come to follow Jesus as Lord and only Jesus as Lord....not a church, not mary, not icons, etc.
What false teachings?
Here's the thing: I follow Jesus as Lord and only Jesus as Lord, and it's the Lord who tells me, in His Word, that He was building His church. Hmm. Where'd it go?
Jesus said if you have a dispute, you should take it to the Church. Which sorta implies you could find it, and it would have the authority to solve disputes.
Paul says the Church of God is the pillar and foundation of the Truth. That makes it kinda Biblically important, doesn't it? He wrote pages and pages on the Church. Was he on the wrong track?
Scripture also says all generations would call Mary "Blessed." I do. Don't you?
So it seems you've set up a false dichotomy: Jesus OR Jesus' Church, Jesus OR Jesus' Mother, and Jesus the Image (ICON) of the invisible God, OR Jesus' Icons.
The Church is described Biblically as Christ's s Body and also as His Bride. Why would you want to, or how could you, split Christ from His Church, or choose one but not the other?
It's not an either/or thing. It's Christ being All in All.
Protestants need to:
1) Actually understand the Bible, not just gloss certain verses out of context.
2) Study actual real history, not the rantings of certain anti-Catholic bigots.
3) Realize that the Catholic Church offers the single best hope for salvation.