I don't think it is quite that black. There are plenty of good companies and nice people that make bank from starting new companies. The hype and the bro-culture are not the only faces the start-up community has and if that all you see then you're missing a lot of the good that is happening: Female / minority participation in start-ups is substantially above country average for most countries in Western Europe, there are quite a few start-ups that are working hard to achieve something good for the world, but not in an 'Instagram' like manner kind of 'good for the world'.
SMEs are the backbone of private enterprise in Europe, they create more jobs and employ more people than all of the enterprises combined. They are the backbone of the economy and I'm more than happy to see a thriving eco-system around them.