A few things to unpick there
Politicians aren't getting involved with technology, they are just mandating that standards are in place. It is up to the standards bodies/consortiums that will define the standard.
As for not getting better solutions that USB-C, I couldn't imagine needing a connector smaller than usb-c.
But in any case, you won't be stuck with USB-C just as we haven't been stuck with the variations of USB or HDMI or any other standard. There are mobile standards that from 2G and what ever went before it to 3g, 4g 5g, standards evolve over time. What we don't want is 50 different mobile connectors and charging bricks which in no way impedes a company...
While I would like to see USB C implemented on the iPhone, I don't think legislation is the way to do it. And given that I rarely plug my iPhone in anymore, I'm not overly concerned about this happening. However, there are a few of your items that also need to be unpicked.
Politicians aren't getting involved with technology, they are just mandating that standards are in place.
Yes, technology standards; hence they are getting involved in technology. Just not the development of it.
As for not getting better solutions that USB-C, I couldn't imagine needing a connector smaller than usb-c.
Just because you cannot imagine needing a connector smaller than USB-C, doesn't mean there isn't a need. And it's not just about size, maybe a different connector will have higher bandwidth, or some other feature that will work with future technology better. But companies will still have to include usb-c on their devices. Advancement will now be happening at the speed of government; great.
you won't be stuck with USB-C just as we haven't been stuck with the variations of USB or HDMI or any other standard.
Yes, we will be stuck with usb-c. The politicians didn't vote for the standards of usb-c, they voted to force the use of the usb-c standard. Companies no longer will have the choice of usb-c, lighting, micro-usb, magnetic induction, etc., and let the market decide. The market will now be stuck with usb-c.
What we don't want is 50 different mobile connectors and charging bricks
1. Lightning
2. USB-C
3. Micro USB
4. Magnetic Induction
What are the other 46 connectors that your devices are using that all require their own, different, cables?