Against this, Cameron and his supporters argue that, according to their survey of obits, even if they don't have AIDS, homosexual males tend to die by their mid-40s (and lesbians by their late 40s).
Cameron uses death statistics as an argument for reorientation therapy. 
mnli hypothesis: Cameron uses death statistics as an argument for reorientation therapy.  premise: Against this, Cameron and his supporters argue that, according to their survey of obits, even if they don't have AIDS, homosexual males tend to die by their mid-40s (and lesbians by their late 40s).