The easy response to this is that I do really want the government to guarantee a *minimum* standard of healthcare and a *minimum* wage. So, let's look at UBI. If some form of UBI is implemented, then the simplest option is just to say that everyone in the country gets $X per month.
No questions, no quibbles. You exist, you get $X per month.
Now, there's plenty of argument to be had for what the value of X should be. But let's just say that it's enough to barely cover food costs for the month, and rent if you don't mind splitting a one-room apartment between three people. No more than that. You can live off it, but you don't want to.
Does this cement you into a wage? No. Because you get the $X whether you work or not. Someone wants you to work for them, they're going to need to pay you something extra, *on top* of that $X. (And yes, a huge chunk - but not all - of that extra will be paid into tax, to pay for everyone's $X per month).