David vs Goliath
It's not in the interests of large corporations to have competition from fast moving and innovative small businesses. Since (our democratically elected, yeah right) politicos are owned by these aforementioned corporations it's very easy to draw the line between legislation that favours companies that can absorb the overheads. Perhaps one way to address this is to distinguish further in law between Ltd/Plc companies and "t/a" ones - where you have a personal liability you also get additional get-outs.
Anecdote: A female friend of mine started her own management consulting company. Employed three women over the course of a few years who each got pregnant within a year of starting. Given the requirements, even in a small company, to offer a certain level of maternity benefits such as a job to return to etc. she almost went bust. She said that, even as a staunch feminist, she would never employ another woman of child baring age in her own company again. Irony was, of course, she then got herself pregnant too...