Nobody is saying that Catholics believe in salvation by 2works alone.
The problem is that the minute anyone adds anything to faith, then it's not through faith. It's whatever is added to faith, be it baptism, works, communion, whatever.
Thank you. Let us not forget that. So therefore quoting the Bible praising faith is repeating a fully Catholic teaching and does not proves Catholic soteriology wrong.
the minute anyone adds anything to faith, then it's not through faith
That is not logically so, for good works are a part of faith also. For example, Abraham by faith crossed the desert: here is both faith and works.