If the current people are not to be blamed, I would argue that itself renders the apology meaningless. It would be like you going on a murder spree and then me

If the current people are not to be blamed, I would argue that itself renders the apology meaningless. It would be like you going on a murder spree and then me announcing that I apologize for a random stranger's murder spree. If they are to be blamed and willingly accept some measure of blame in order to apologize, then their apology is again empty unless they actually have taken steps to rectify the situation around them. (Which in discriminatory elements is identical to the previous situation.) Ultimately, I think it is theatre. An easy way for people who are not willing to solve problems around them: Yes, problems which also include discrimination against gays right now; yet want some way to assuage themselves of guilt. Well fuck that.