CIRA international bail out; must observe Torah commands perfectly?

In answer to the video "Sin and Salvation, Part 5 - Paradise in Islam"

Deut27 curses the one who does not live by the divine law. Yet we have Paul in places like Gal3:10 painting it as a curse which Jesus' death now retrospectively freed the world from. But the world in the first place isnt even concerned by this law, only the Jews were, and still are, concerned by it. This negative, completely misconstrued view of the mosaic law is of course in disregards of statements such as Deut30:10-14 where the entire Law is said to be at anyone's reach, of Ps119:1 stating that

"Praiseworthy are those whose way is perfect, who walk with the law of the Lord"

and Job37:23 which does not expect people to be perfectly righteous in Torah observance. In fact even the NT contains similar statements, as in Lk1:6 where John's parents are upright in God's sight, observing all commandements blamelessly. This is the way of God and is reflected not only in the earlier revelations, but down to the Quran as well

2:220"And had God so willed, He would indeed have imposed on you hardships which you would not have been able to bear, but behold, God is almighty, wise".

The sharia/law of God is and has always been intended to be simple and straightforward, adapted to man's nature, extreme circumstances and exceptions, and above all it is the means by which one is spiritually purified 2:185,5:6,22:78. Whenever the religion became complicated, it was either because of man-made additions to it, or as a punishement.

Today's Christians pick and choose which laws are still aplicable to them while all of them, including the so-called 10 laws, were revealed at Sinai. But being non-Jews, they are not obliged to follow the Law in the first place, yet still declare that Jesus' sacrifice is the only thing that saved them from it (the law that God Himself obliged). Being that God is the source of the very laws they condemn, the "mercy" of Jesus "fulfilling" the law by "breaking" it, came after the generations upon generations of oppression by that very same God's demand that His law be upheld and fulfilled.