No its not.
There's Leviticus... which we can discard as being irrelevant...
Then there is Paul, who's writings are interpreted by many to be refering to specific groups, rather than homosexuals as a whole... and, more importantly... the writings of Paul are, as Paul says himself, just his opinion.
Now, if you find me a verse where JESUS says "homosexuality is bad"... then I'll agree with you that Giod condemns homosexuality. But, as it is, the evidence is purely circumstantial and depends more on pre existing beliefs than any objective reading of the relevant verses.
I don't know who you included in that 'we', but Leviticus is not discarded by Christians for being irrelevant; however, a few unknowledgeable people confuse (purposed or mistakenly) portions related to civil or ceremonial teaching with the moral laws.
http://www.newadvent.org/cathen/09071a.htm
http://www.newadvent.org/library/docs_df75se.htm
And only in specific areas would Paul be stating that an instruction is based on his judgment. It is shown in the text when done.
Likewise, the premise advanced in your post that presumes Jesus Christ's teachings do not coincide and co-exist with God's given word is only self-evident as to the flawed theology being grasped. The fact that Jesus repeatedly references the "pre existing beliefs" that was denounced with your wide-brush is simply showing the contradicting basis in your claims.
And to be absolutely clear, it would by your burden to show Jesus Christ ordained same-gender relations. Judeo/Christian teaching is consistent in showing that such behavior was punishable by death under the old covenant,
repentance and forgiveness in His name is to be preached under the new covenant and in no context would that same-gender sexual/romantic model be ordained by God.
All references to same-gender sexual behavior reflect God condemns it. All, not some, all and quite plainly.
This is the reason why, when repeatedly asked to substantiate the empty claims, assertions such as the ones you made above are continually void and impotent in fulfilling the request from Christian teaching.
There it is in a nutshell. And as I am reading the recent posts, I'll include that I would not anticipate me entering into that "yes it is", "no it isn't" pointless retort. All you need to do is show where God says homosexuality is part of His will for us and the issue gets resolved.