[crosshairs]

Catholics who don’t believe in or practice Catholic doctrine are not actually Catholic, and therefore still have a chance for salvation according to God's promise in scripture.

[E. Pluribus Unum]

You’re going to burn in Hell for that.

[Campion]

according to God's promise in scripture.

Seems to me that God promised to keep his church free from error through the indwelling of the Holy Spirit. Seems he also prayed for his disciples to remain in unity, and another Scripture seems to say that "the fervent prayer of a righteous man availeth much," therefore, we know that that prayer was heard.

So by deserting those promises, Catholics who apostasize demonstrate their faithfulness to God's other promises?

I don't think it works that way, sorry.

[MarkBsnr]

Catholics who don’t believe in or practice Catholic doctrine are not actually Catholic, and therefore still have a chance for salvation according to God's promise in scripture.

John 14: 21 He that hath my commandments, and keepeth them; he it is that loveth me. And he that loveth me, shall be loved of my Father: and I will love him, and will manifest myself to him. 22 Judas saith to him, not the Iscariot: Lord, how is it, that thou wilt manifest thyself to us, and not to the world? 23 Jesus answered, and said to him: If any one love me, he will keep my word, and my Father will love him, and we will come to him, and will make our abode with him. 24 He that loveth me not, keepeth not my words. And the word which you have heard, is not mine; but the Father's who sent me.

We must keep the Faith given to us from the Apostles who received it from Jesus Himself. Is it possible to be saved by God outside of the Faith? Could be - if God were to decide that. But we have no assurance that He will. Rejecting the Faith is not the surest way to one's salvation.