Putting aside that you've misunderstood the story:
big businesses start off as small businesses. They don't need Gov't help, they just need fewer constraints.
I employ 3 people, we just about break-even (but I can't afford to pay myself as much as I pay any of my employees). If we can survive the bad times then when things improve we stand a reasonable chance of growth but for now, things are difficult.
Were one of us to get pregnant or even seriously ill we'd have to close down. That's 4 of us unemployed. Current tax generation from us (Income tax, NI, VAT) is "only" about £15k a year (but that's more than any one of us earn). A big business can afford sick pay, maternity pay etc. For us just the absence of the skilled individual would wipe us out. Fine you say, the reality is that your business isn't viable - that's true but it could be. You choose, do you want 4 of us to cease to be in employment, generating tax revenue, providing a useful service to other local businesses at a competitive price. Or would you prefer us to become unemployed, a burden on the state, reducing our individual spending power in the local economy. In addition our customers, mostly other struggling small businesses would have to pay higher prices for an (essential) service like ours so contributing to putting their survival at risk too.
If we paid NO tax there's little question that we' would survive and 4 people would remain in employment - but it seems you'd prefer that we were living on state benefits.