like gay people havent been killed for being gay
soldiers fought for the people who couldn't, in order to save their entire country, not just the people within their specified love, race, loveuality etc.
the threat was 100% lethal and it basically guaranteed that they had to give it their all or they would die
but yeah let's compare that to a group fighting for exclusively their group (because who else would benefit from same-love marriage) who has a small chance of being killed by super-bigots and the mentally-ill