Further removing people from the most important parts of life and entrusting those to a benevolent central authority is a risk I’d personally _not_ take. The lessons I learned from the most recent US presidential election is how grateful I am for separation of powers and limits on the scopes that any one person (or branch of government) can actually impose on my day-to-day life.
I’d prefer to not see UBI furloughed because two parties I’m not connected to would prefer to grandstand over a budgetary rounding error than solve problems.
The (unfortunate) reality is that for most people you either need a lot of savings or an investor to get a company off the ground [1]. I am skeptical that free education or a $10k/year UBI would change that.
[1] One notable exception is companies that can be started on the side, but UBI would not affect those very much, either.
It is the desire, hunger, and unmet needs that creates many startups.