It's not really about optimism or pessimism, it's effect vs no effect. Self reported anecdotes like yours abound, but as far as I'm aware the effect isn't real. That is, it's not in fact true that if a business buys AI tools for its developers their output will increase in some way that impacts the business meaningfully. So while you may feel more productive using AI tooling, in fact you probably aren't, actually.
No. If you're trying to make a causal link between some layoffs and AI tooling you need to bring the receipts. Show that the layoffs were caused by AI tooling, don't just assume it. I don't think you can, or that anyone has.
I am very much not an AI skeptic, I use AI every day for work, and it's quite clear to me that most of the layoffs of the past few years are correcting for the absurd over hiring from the Covid era. Every software company really convinced themselves that they needed like 2-3x the workforce they actually did because "the world changed". Then it became clear that the world in fact did not fundamentally change in the ways they thought.
Chat GPT just happened to come out around the same time so we get all this misattribution
A small startup now has the chance to compete with incumbents without raising from VCs.
Not talking about you, but I think cynics just look at it with too much pessimism and therefore can't see it.