Denmark, Finland, Iceland, Norway and Sweden. None of these nations have an minimim hourly wage enshrined in law. Instead many of the base terms of employment, including wages, are decided via collective bargaining between sector trade unions and representatives of public sector and business interest organizations.
I live in Sweden by the way, so feel free to ask me questions on the topic and I’ll do my best to answer.
Within Swedish politics there is essentially complete agreement that the union model of labour negotiation should remain. Companies like Tesla are certainly an issue, but comparatively easier to deal with. The larger threat to the union model actually comes from undeclared labour which is a huge, systemic problem.
It ends up being significantly cheaper for the employer (no taxes, benefits, regulation) and can (in the short term) be beneficial for the employee (higher wage, still cashing in unemployment benefits etc.) even if it is disruptive for the collective long term.
In some businesses such as salons for hair dressers or mani-pedi, as many as 40% of labour is undeclared. Restaurants, construction and transportation are also high up.