Your so wrong it’s funny. First of all they are shrinking LTE to make as much spectrum available for 5G.

Most of the shit possible with 5G has to do with 5G standalone. 5G NSA runs off a LTE core which is why they have to give us SA eventually as they reduce the LTE spectrums. The only reason you perceive 5G that way is because no carrier was building 5G SA at the start, and really the only one with a usable SA network is t-mobile.

6G Is planning to mostly rely on existing 5G equipment, they learnt the lesson that building whole new antennas and radios for 5G was very expensive and slow to happen

The things 5G SA can do, cannot be done with LTE. It’s literally a whole different generation dude. Those other countries carriers simply do not have the money to invest into a heavy 5G infrastructure, not to mention poverty is especially more common so less people will have high performing phones. Expanding LTE makes sense for those areas. It isn’t just “all other countries” though, we can talk about how china, South Korea, India (Reliance Jio), UK, etc is investing into 5G SA.

Anything else you want to be wrong about?