Oh, please. If they were really alien they wouldn't have any DNA in common with us at all. And until samples of the "aliens" are provided to multiple scientists and labs across the globe for peer review, this is just horseshit wishful thinking.
We've got a planet full of intelligent beings we're busy killing off, so we've never been alone. We're just too speciesist to accept their existence as our equals.
If there were aliens and they had any sense at all they'd quarantine our planet and never let us off it.