I didn’t see you make any points....
Slowly, so that one can understand.
When one accepts the Church as Christ’s church, one therefore accepts her authority in matters regarding faith and morals.
Rejecting the doctrine of the Mary’s perpetual virginity is merely a surrogate for the whole Church.
By rejecting the Church, one rejects the Eucharist, a teaching clearly stated and reiterated numerous times by Jesus.
In rejecting the Eucharist, one risks their eternal salvation.
Protestants need to justify their rejection of the Church, not the other way around.
Therefore, it is a very important matter.
You chose to reprint what I said about the Eucharist, ignore it and then reject the doctrine regarding Mary.
Proved my point.