Why is it plain wrong? It’s just an opinion same as yours.
As far as I can see the Welsh independence movement is a minority of people shouting loudest on social media.
When it went to the polls Plaid Cymru, for all their optimism that the appetite for Welsh Indepndence was massively on the increase, had a very, very disappointing result.
I actually voted Plaid Cymru myself but I think there’s a lot of blind optimism with regards independence.