Eh..
The Tea story was England had been ignoring smuggling, then after a lot of warnings, enforced it by seizing smuggled tea and shipping it to England to be taxed.
This meant the only tea on the market was legal tea and a very very small reserve of smuggled.
So the smugglers dumped all the legal tea into the harbour, driving up both prices, making tea prohibitively expensive for most Americans, but maintained profits.
It's presented as an act of rebellion, when it was spoiled rich people di king over the commonors for money.