I don't think there should have been a referendum no.
But that was a gap of fifty years. Had there been another vote after ten years I do think it would be anti democratic.
If there is a vote and it does not go your way, it is not acceptable to hold a vote again and again and again until you get the vote you want. It is undemocratic. It is unworkable, as presumably you will have to have a referendum again to vote on whether to return to the UK.
I don't think that is in any way controversial or unreasonable.
This is not a general election. This is breaking apart a country. This is irreversible. I mean we're only just keeping a lid on Ireland thanks to all that Brexit *****. Yeah what we need is more nationalism....