I welcome disagreement, but it helps if it engages with what I actually wrote.
You are right that private polls should be treated with caution. I did not spell out those limitations clearly enough in the article, and I take that point. But even putting the YesCymru poll to one side, the very data you have shared backs up the trend I am highlighting. In 2014, support for independence was around 12 percent. Now it is at 35 percent, or 41 percent if you exclude “don’t knows”. That is a clear and sustained increase over the past decade.
On youth support, the figures you show are from 2023 and are already outdated. More recent polling consistently shows that support for independence among younger voters is considerably higher than among the general population, often by a large margin, for example 72% in the most recent poll if “don’t knows” are excluded.
The Welsh Lib Dems do not 'need' to adopt a pro-independence stance, but ignoring a steadily growing shift in public opinion, especially among the voter base they have traditionally relied on, is politically short-sighted. Recognising this is not wishful thinking, it is basic strategic awareness.