How bad is homosexual practice according to Scripture and does Scripture’s view apply to committed homosexual unions?

http://www.anglican-mainstream.net/?p=1325

[Anglican Mainstream] 15 Mar 2007--(1) Paul clearly had in view the creation texts in Gen 1:27 and 2:24 behind his two main indictments of homosexual practice, Romans 1:24-27 and 1 Corinthians 6:9 (cf. 1 Timothy 1:10).(2) Paul’s nature argument against homosexual practice in Romans 1:24-27 does not lend itself to distinctions between exploitative and non-exploitative manifestations of homosexual behavior but rather to an absolute rejection of all homosexual bonds.