Originally Posted by De Maria
According to Catholic teaching, no. People go to hell who reject God.
1033 We cannot be united with God unless we freely choose to love him. But we cannot love God if we sin gravely against him, against our neighbor or against ourselves: "He who does not love remains in death. Anyone who hates his brother is a murderer, and you know that no murderer has eternal life abiding in him." Our Lord warns us that we shall be separated from him if we fail to meet the serious needs of the poor and the little ones who are his brethren. To die in mortal sin without repenting and accepting God's merciful love means remaining separated from him for ever by our own free choice. This state of definitive self-exclusion from communion with God and the blessed is called "hell."
Correct me if I'm wrong, but I think the gist of your question is, "Why doesn't God reveal Himself to us and thus reveal which is the true religion?
The answer is because of "free will". God wants us to love Him and thus to search for Him because we love Him. But if He revealed Himself to us, His Omnipotent presence would overwhelm us and we would have to believe in Him whether we love Him or not.
Thats the same thing as holding a gun to someone's head and saying "Marry me!"
Obviously, love is not coerced.
So, if we love God and we don't believe that God is adequately represented by the Church or religion which we attend, then we must search for Him elsewhere.
But God is just, so be at peace:
Hebrews 11 6 But without faith it is impossible to please God. For he that cometh to God, must believe that he is, and is a rewarder to them that seek him.
Sincerely,
De Maria