“the basics founding block of democracy of one person, one vote”
No it isn’t. Democracy as an electoral system does not have any such requirement in it’s definition.
It was still a democracy when black people and women couldn’t vote. People just eventually agreed that it should be more equal. We still don’t let certain people vote though (kids have no voice, and neither do some criminals)
As for those other people, they still have a vote, it’s just a smaller amount than people who would have kids.
Again, I don’t actually think this is a good idea, I just see that there is potentially good outcomes from it.