Just how many problems this represents, I cannot say but here are two:
The figure of 6% is a gross exaggeration. The only figures worthy of stating are those from the largest sex survey ever, which used a sample of over 40,000. To the best of my recollection, that was by the Wellcome Trust and their figure was around two and a half percent for male homosexuals and about half a percent for lesbians.
Furthermore, she implies that there are other non 'open' MPs.
Does not her system leave homosexuals over-represented?