From a pure numbers standpoint, absolutely. We're already seeing a wave of folks shipping more PoC products with AI tools. The distinction is that most of these aren't true "competitors" to established companies, more filling gaps and niches if they aren't just a toy clone.
That's the more interesting angle here to me. Rather than building a direct competitor at 10% the cost, agent assisted tooling could make it individually profitable to target small cap, cottage industry type problems that have too much nuance for a one size product. Areas where someone already has deep business insight that provides the value proposition moreso than the labor around coding. Not competitors at 10% the cost, but filling niches that wouldn't have been profitable otherwise.
The danger is that if agents get more capable, the niche markets start to erode. If a generic solution agent can acquire domain knowledge and coordinate with customers, even these 'competitors' become risky again.