I think the most worrying one is that clients of independent contractors (which I know is an incredibly broad term and conditions, leverage and respect vary acr

I think the most worrying one is that clients of independent contractors (which I know is an incredibly broad term and conditions, leverage and respect vary across and within industries) may be less willing to hire ICs if they're might be forced to treat them as full-time equivalent employees (benefits). If true, then this could lead to reduced business for ICs, which in turn requires more time spent on business development and less time on billable engagements to maintain similar revenue levels going forward. On the other hand, if you're, say, a trucker that would for all intents and purposes normally be considered an employee of a company because so much of their livelihood, hours and method of work depends on a single employer, then their situation (and total compensation) would likely improve.