No, the church, the body of Christ, should not be ignored.
However, the burden of proof is on you to prove that Catholicism IS that body.
Until then, ignoring the Catholic church with all its unScriptural teachings, is still an option for born again believers.
There is a simple negative proof.
1
Christ’s Church will be with us until the end of the world (”the gates of hell will not prevail against it.”)
2
Christ’s Church is “the pillar and foundation of truth,” given the Holy Spirit by Christ to lead it into all truth. It cannot teach error, or IOW, bind believers to erroneous belief.
3
So Christ’s Church must possess a non-contradictory body of dogmatic teaching.
4
This Church must have been in continuous existence since Apostolic times. If it passed out of visible existence criteria #1 would be contradicted.
5
The Catholic Church is the only possible candidate to meet requirements 4 and 5. Her Teaching is non-contradictory.
No Protestant Church possesses anything close. All Protestants agree on only four or five beliefs, at most. This is hardly “all truth.” And no visible Protestant Church can trace its history to the Apostles, as the Catholic Church can.
6
If you claim that no visible church meets criteria 4 and 5, then your claim would contradict 1.
There, fixed it for you.