The Mishnah in Pirkei Avos (5/13) states succinctly, "One who says, 'that which is mine, is yours and that which is yours, is mine,' is an Am haAretz." Sharing everything (by edict..."What is yours IS mine!") sounds nice but is very much not practical! That attitude led the Soviet Union, which had had overwhelming abundance of wheat fields etc., to fail miserably in the 40s because there was no "capitalistic" incentive to harvest the crops.
Earlier, in chapter 2, the Rabbis give strong advice "(Mishnah 8) One who increases Tzedaka, increases Shalom." But "(Mishnah 17) the money of your colleague shall be as dear to you as your own."
Despite the statement that increasing Tzedaka increases peace, nonetheless, the Rabbis frown on giving more than 20% of your income to Tzedaka (except perhaps, when one is blessed with vast wealth), for fear that one might not be able to recoup in the following year and be forced to collect charity himself!
Clearly, there is a balance between the concepts of Chessed and Gevurah, which is reiterated throughout Judaism and leads to Tiferes, glory.
There is certainly room to navigate these issues in halachic Judaism but to state that liberal views on "abortion, homosexuality and Marxist socialism are the ones of 'real Jews'" is absurd, to say the least. As usual, the Torah Halachic view on, e.g., abortion is neither strictly liberal (late term permissible) or strictly conservative (never under any circumstance).
I have heard a Jewish abortion activist attempt to "prove" that abortion was perfectly alright because "don't blame me, the Halacha states that a baby/fetus can be aborted until the last moment!" based on Mishnah in Oholot, quoted in Gemara Sanhedrin, 72, that "a fetus who is endangering the life of the mother may be taken out "limb by limb" up until the head presents itself." This argument is false for two reasons.
(1) It is permissible because of the concept of Rodeph - i.e. one who is "pursuing" someone in order to murder him may be "saved" from "committing murder" by killing the Rodeph/pursuer. Ergo, one may take out the fetus "limb by limb" when the fetus threatens the life of the mother. BUT, the rule of Rodeph also states that if you are able to "save" him by hurting him, thus stopping the murder while not killing the potential murderer, you would be liable yourself for murder due to overreach. In the same way, to propose late term abortion (in all circumstances Other than when the fetus is literally endangering the mother's life, rather than giving birth and offering the baby up for adoption seems to be overreach and forbidden. This is the position of Rabbi Moshe Feinstein. Although the Israeli poseik Rav Eliezer Waldenberg is lenient in cases of severe emotional situations, as well as rape and incest, or Tay Sachs.
(2)Secondly, abortion is not looked upon as a right of the woman rather as a protection for the woman. Halacha looks at abortion as a last ditch, very "b'dieved" (to be dissuaded, secondary) approach. Much closer to a right wing perspective.
For a much fuller treatment of this issue, see Jewish Virtual Library, issues in Jewish Ethics: Abortion. Also, Aish.com Dr Daniel Eisenberg