Tax money for LGBT services
Some governments fund LGBT festivals, LGBT education for government employees, condoms, or other services to benefit sexual minorities.
Well, government spending could always be subject to debate, but this spending in no way makes homosexuality, itself, a problem; if gay people had their rights, the services wouldn't be necessary. Furthermore, there are not separate "gay" and "straight" economies: both are part of a wider thing generally known as "the economy". Governments and tax agencies do not employ people to ensure that the taxes paid by heterosexuals only go into programs targeted at sexual minorities, so it is definitely not a matter of "straight" money going to gay people.
And if we were only concerning government cost, wouldn't putting gay people on trial, and sending them to prison, or give them lifetime appeal before executing them be much more expensive?
Opposition to funding for LGBT services can be a hypocritical point of view when you consider that tax money going to orphanages and public schools could be described as directing tax money, including that paid by gay people, towards the results of heterosexual procreation.