It genuinely isn't difficult in practice. Be polite and professional to your co-workers. That's it.
If someone is gay, straight, whatever, it doesn't have any bearing on their work, so it's not something that's discussed. I have literally zero desire to hear about anybody's sexual relationships at work.
If someone thinks that the mere presence of a gay person is an agenda, then they fail rule 1, which is be polite and professional to your co-workers, and it's on them to either get a grip or leave.
If someone is gay, straight, whatever, it doesn't have any bearing on their work, so it's not something that's discussed. I have literally zero desire to hear about anybody's sexual relationships at work.
If someone thinks that the mere presence of a gay person is an agenda, then they fail rule 1, which is be polite and professional to your co-workers, and it's on them to either get a grip or leave.