You are delusional! The liberalism that comes from Jews who not Believers in Christ comes from the spirit of anti-Christ. When a group by and large supports a political party that enables and promotes abortion, infanticide and homosexuality - it's absurd to believe that person or group is led by the Holy Spirit. Just the opposite is true.
Christians who believe that Jews are virtuous because they follow the Mosaic law or Jewish tradition - do not understand Christianity.
“For the law (of Moses) was given by Moses, but grace and truth came by Jesus Christ.” - John 1:17
"Knowing that a man is not justified by the works of the law (of Moses), but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified." - Gal. 2:16
"Therefore by the deeds of the law (of Moses) there shall no flesh be justified in his sight: for by the law is the knowledge of sin." - Rom. 3:20
Hebrews 12:18-29 contrasts law (of Moses) and grace as Mt. Sinai and Mt. Zion respectively.
"For ye are not come unto the mount that might be touched, and that burned with fire, nor unto blackness, and darkness, and tempest, And the sound of a trumpet, and the voice of words; which voice they that heard intreated that the word should not be spoken to them any more: (For they could not endure that which was commanded, And if so much as a beast touch the mountain, it shall be stoned, or thrust through with a dart: And so terrible was the sight, that Moses said, I exceedingly fear and quake:) But ye are come unto mount Sion, and unto the city of the living God, the heavenly Jerusalem, and to an innumerable company of angels, To the general assembly and church of the firstborn, which are written in heaven, and to God the Judge of all, and to the spirits of just men made perfect" - Hebrews 12:18-29
Why do you think God chose the Jews for the Messiah of all mankind? Why not the Chinese, or any of the other ancient cultures that were around at the time? You take it for granted, just as many others do. No, it was planned from the start. The Messiah and the Bible are one.