If you didn't look up the study then how were you commenting on the supposedly small sample size!
The article on the gene:
https://en.wikipedia.org/wiki/Xq28The studies:
Hamer, D.; Hu, S; Magnuson, V.; Hu, N; Pattatucci, A. (1993). "A linkage between DNA markers on the X chromosome and male sexual orientation".
Science 261 (5119): 321–7.
Bibcode:
1993Sci...261..321H.
doi:
10.1126/science.8332896.
PMID 8332896.
Hu, Stella; Pattatucci, Angela M. L.; Patterson, Chavis; Li, Lin; Fulker, David W.; Cherny, Stacey S.; Kruglyak, Leonid; Hamer, Dean H. (1995). "Linkage between sexual orientation and chromosome Xq28 in males but not in females".
Nature Genetics 11 (3): 248–56.
doi:
10.1038/ng1195-248.
PMID 7581447.
Pool R. Evidence for homosexuality gene. Science. 1993 Jul 16;261(5119):291-2. PubMed
PMID 8332894.
King MC. Human genetics. Sexual orientation and the X. Nature. 1993 Jul22;364(6435):288-9. PubMed
PMID 8332183.
Byne, William (May 1994). "The Biological Evidence Challenged".
Scientific American.
Hamer, Dean; Simon LeVay (May 1994). "Evidence for a Biological Influence in Male Homosexuality".
Scientific American.
Rice et al., 1999. Male homosexuality: Absence of linkage to microsatellite markers at Xq28.
Science, 284, 665-667.
"Genetics and Male Sexual Orientation". Sciencemag.org. 1999-08-06.
doi:
10.1126/science.285.5429.803a.
More recent studies:
Genome-wide linkage scan of male sexual orientation. A. R. Sanders, K. Dawood, G. Rieger, J. A. Badner, E. S. Gershon, R. S. Krishnappa, A. B. Kolundzija, S. Guo, G. W. Beecham, E. R. Martin, J.M. Bailey8, Abstract 1957T
Mustanski BS, Dupree MG, Nievergelt CM, Bocklandt S, Schork NJ, Hamer DH (March 2005). "A genomewide scan of male sexual orientation".
Hum. Genet. 116 (4): 272–8.
doi:
10.1007/s00439-004-1241-4.
PMID 15645181.
Sanders,A. R. and Martin,E. R. and Beecham,G. W. and Guo,S. and Dawood,K. and Rieger,G. and Badner,J. A. and Gershon,E. S. and Krishnappa,R. S. and Kolundzija,A. B. and Duan,J. and Gejman,P. V. and Bailey,J. M. (November 2014).
"Genome-wide scan demonstrates significant linkage for male sexual orientation".
Psychological Medicine. FirstView: 1–10.
doi:
10.1017/S0033291714002451.
Mintz, Zoe (14 February 2014).
"Does A ‘Gay Gene’ Exist? New Study Says ‘Xq28’ May Influence Male Sexual Orientation".
Your turn. Where are the studies saying it's due to desensitisation and indoctrination?