Chart - TA, page-3245

Yes, you are right, it is gobal south Central Banks that are purchasing record quantities of gold. But your argument (I believe you are making) that because you don't like their political system, therefore economics become irrelevant, does not hold.
You may do well to consider why these banks are doing such a thing. At the same time as purchasing this gold, global south countries are also 'dedollarising.'
The central bank of Indonesia has called on exporters and importers to cease payments in U.S dollars, Saudi Arabia is selling oil for Yuan, the list goes on and is too much to list here.
You may be right that these governments are tyrannical, however that is not what people are arguing.
There is a deep concern that the role of the U.S dollar as world reserve currency is coming to an end.
China recently published a paper whereby it declared a long list of U.S injustices. One of these was the fact that "the U.S pays 17cents to print a dollar bill, and other countries have to produce a dollars worth of value to get it."
There is stark evidence that the U.S dollar is about to lose it's world reserve status.
The reason Western governments are not loading up on gold is because they will likely keep trading all their goods in U.S dollars.
The other countries will need an alternative to the dollar as it is easier to have a common currency than trading in various currencies.
It would need to be stable and have securely recognised value.
Partial gold backing would achieve this, perhaps with other commodities and currencies included to make a 'basket currency.'
The point is not so much that these countries are 'good' or that their new reserve currency will be 'good' but that the U.S dollar is in deep trouble.
The value of gold is more or less inversely correlated to the strength of the U.S dollar, one goes up, the other goes down. The strength of the U.S dollar is expressed as the DXY on the stockmarket.
The world economy is about to go through an historic event, so far as I can tell.
This is frankly not the place to discuss the morality of different political systems, although that is personally interesting to me.
The reason the Indian government is trying to get Indians to buy less gold is because they buy so much of the stuff that is actually causes a trade imbalance and hurts the growth of their economy. The massive gold purchases of Indian people causes a lot of value to be locked out of the economy and makes economic growth more difficult.
Meanwhile the Indian central bank is buying masses of the stuff.
Regardless, the Indian economy is currently growing at about 7% per annum, much faster than the U.S or Australia.