You think oppressive regimes don't already realize what they are?
They simply don't care.
They simply don't care.
Hoping that they'll throw their hands in the air and give-up instead of blocking AWS etc is naive. The people making the decision don't suffer the consequences as do their subjects.
Cuba defied an aggressive embargo by the US for ~50 years, which is partially responsible for Cubans typically having present incomes of about $20 per month. [1] By contrast, Haiti, which is one of the poorest nations on earth, has a higher median income than Cuba. The Castro brothers were simply unmoved by the extreme financial consequences (and the people of Cuba also did not topple them across more than half a century).
Similarly it didn't work against North Korea across 60 years. Even while the North watched South Korea develop and grow into one of the 20 or so richest nations.
It also didn't work very well against the USSR. The West heavily limited its trade and economic cooperation with the USSR across the entire post WW2 era until their collapse. The West rapidly developed advanced technological economies, the USSR did not, their people suffered extraordinary poverty and backwardness. The regimes in Moscow didn't care. What finally brought down the USSR, was the collapse of the price of oil brought on by a strong dollar shock in the late 1980s (by contrast they were doing far better economically in the 1970s and early 1980s as the price of oil was very high).
[1] https://www.brookings.edu/blog/brookings-now/2015/07/17/10-e...