Yes of course, the men attending a Gay Pride parade are perhaps overachievers in this area. But the stereotype of the promiscuous gay man is long established and accurate. Do not pretend otherwise.
They want to be treated like everyone else; get married like everyone else; these days, have children like everyone else; but don't kid yourselves, they are not like everyone else.
I'm pretty liberal about gay people and the gay lifestyle; they can do whatever they like, both in and out of the bedroom. But this level of promiscuity does not lend itself to marriage and children, not to mention public health.
Yes, these debates are largely over. But maybe they need a second, more realistic, look.