Of course not
It states clearly in Leviticus Chapter 18 verse 22 " 'Do not lie with a man as one lies with a woman; that is detestable.
If you want to "be" considered Jewish, this is the rule that we must abide by. There is no choice in the matter - it is crystal clear.
If you do not want to be considered Jewish then the "rules" do not apply and you can do what you like.
Liberal Judaism has made a mockery of Jewish values and of the sanctity of marriage with this step; it is a step too far, even for the Liberal movement. Although, as a Liberal Jew myself, I appreciate that sometimes it is far preferable to uphold the spirit rather than the letter of the Law, I believe this is flying in the face of the essence of the Torah and of marriage. I have homosexual friends; three couples. However, I believe that to call a homosexual pairing a "marriage" is absurd - marriage is a union of a man and a woman, enjoined to "be fruitful and multiply". Liberal Judaism may find that it has shot itself in the foot with a divisive move that might alienate many of its congregants; the movement might find that the only people standing under its chuppah in future are same sex couples. Compassion for gays, yes; marriage, never.
This is the Jewish Chronicle web site; compassion and understanding OK, but please, let's stop with this idea advocating "Gay" as if it is an alternative to normality; it is NOT. Those who wish to advocate this idea should be blogging on "Gay Pride" web sites not the Jewish Chronicle.
Here am I getting upset about the Jewish Chronicle giving publicity to Gay ideas, when it finally dawned on me; it is Purim today, and all this Gay nonsense on the Jewish Chronicle web-site has been a "Purim Spiel".
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As someone quoted in the supportng article for gay marriages "I would like to see it go even further than this. All synagogues should accept this, and we shouldn't allow them to have a choice in the matter."
That's exactly the problem, some gay people want to force by legislation their worldly or religious view on others - and also try to silence G-d's voice by equal opportunities.... So serial adulterers, do we then say you were born that way (addictive personality) and it's not your problem, therefore acceptable - and G-d loves you and your ways?
Regarding "If there is no ethical objection towards homosexuality (and I cannot believe that a loving G-d would oppose any form of love between consenting adults), why not allow them to sanctify their partnerships in this way?"
It's obvious to anyone that when a man has sex with a woman there is a potential to procreate - and that the genitals between the couple fit each other and were made to work together - the same can not be said when two females or two males are in bed together - and for someone to stick their genitals in someone else's wastepipe - logically was not G-d's will. So I believe it is an ethical argument, not just one of procreation.