Big business also drives down wages way more than small businesses. When you are one of the few major employers in an industry, there is zero need to pay more while sucking in profit. Sure, maybe you could get an union involved but you are still subservient to the same employer who no longer has to respond to any labor market pressure other than quelling the union once in awhile.
However I do not see favoring smaller entrepreneurs over the status quo as something which will improve matters at all. It feels saying our problem is that we have the wrong capitalists. We just need to swap out our old capitalists, get new ones in, and hand them the exploited wealth, and then everything will be good.
What Europe needs is a focus on workers. Enough with capitalism already.
Unions are still strong, but they have been focusing less and less on consumer protection, there are still some victories, like increased holiday/sick pay, parental leave, and gender equality. But compared to the rapid loss of consumer protection, these victories are coming to few and to far apart.