Hitler committed Genocide in Europe, killing at least 11 Million people... Nobody gives a F- about the other 5 Million, which included Gays - who got Pink Triangles when they were put into camps.
The Third Reich's first targets were the disabled and r-worded, because the Third Reich were Eugenicists. Just because people don't grace that mass slaughter with the word "Genocide" doesn't change the reality, which it generally fits, depending on the precise language of your definition. Don't get hung up on semantics. And be careful when using Wikipedia on any subject that's even slightly controversial - it's edited by Spies and professional disinformers, on a 24/7/365 basis, often in the service of malign agendas.