There is currently more demand than supply in the entire world.
If the US and EU got together and told DRAM companies that we're going to sanction them if they don't give us cheap RAM, 10 other countries would roll out the red carpet to come bring that DRAM into their countries instead. The data centers would be built there. Then the US and EU would be compute-starved and have no choice but to go to these other countries for compute.
I suggest you read up on the history of attempts to control prices of oil throughout history. Oil is an order of magnitude bigger market than DRAM. If you think it's realistic to suggest that the EU and US could sanction entire countries into keeping some chip prices down so people can save a couple hundred dollars on their next laptop, this isn't a conversation grounded in reality.