...That's completely incorrect.
They aren't 'controlling' your money. They still allow microtransactions but make companies state the odds of randomly generated results (loot boxes and whatnot) and place limits to prevent addictions or whales from being common.
This isn't 1984 - we aren't going to die because Japan realizes how dangerous microtransactions are.
I like the part of them releasing the odds like they do in China but I'm not very fond of this part of your post.
"For example, a game will have 5000 'points' that you can use to buy microtransactions with. Once you spend the equivalent of X points (typically hovering around equal values), then you have to wait until the beginning of the next month."
I get your concern, but in all honesty I think it's a necessary evil. it's not like they're putting an extremely low limit. I have Pokemon Shuffle on my phone and the limit is 1000 I believe. They make 1 gem = 12 points, and most expensive package is 75 gems.
The app also states clearly in the beginning you can play for free. Japan doesn't mess around, and honestly I think it's something more countries should do. Too many people are easily manipulated and I'd rather see governments put a reasonable limit versus companies screwing over people bad with money.