A seed phrase crosses every border on earth inside a skull.
No scanner sees it. No sanction freezes it. No missile hits it. No government confiscates it.
The only thing that can destroy is amnesia.

The chance that you would get hit by a case of amnesia during a time where you are transporting a seed phrase to another location is so low that it can be completely ignored. The numbers on stuff like that is clear, we need to be careful when we bring these things up even if you are correct because some people start creating threads how we should worry about solar flares and similar.

If one government in one country bans it, the rest of the world won't so that ban will affect absolutely nothing.
Not "absolutely nothing" imo. Bitcoin isn't going to be banned worldwide, of course, but peoples in a banned country can still have serious problems. Fiat ramps get worsen, banks refuse payments, exchanges shut, and regular users face issues when buying and selling.
So yes, while Bitcoin itself continues to function, users access and liquidity may be extremely restricted there. Users can still use VPNs and P2P, but it's not the same as before. The ban is a very real one for users in that country. Not to mention the possibility of being arrested, gossiped by neighbours, and what not...
You are correct that the citizens of such countries would be affected if Bitcoin is banned. But I guess "absolutely nothing" in this context means that it wouldn't have so much effect on the global use of Bitcoin. China's negative stance on Bitcoin has not stopped the adoption and growth of the industry. People in affected countries also have the option of relocating to a friendly country if they have the means.
A sitting president made $635m in royalties from a business that impoverished most of those who invested. If Trump were a member of this forum, many investors of his coin would have opened threads on the scam accusation board.
Just because you lost money on something that does not make that something a scam, so those would be false scam accusations. If you buy a memecoin you accept all the risk that comes with that, nobody can force you to buy it and nobody made false promises that it wasn't a memecoin so there was no scam.
Not "absolutely nothing" imo. Bitcoin isn't going to be banned worldwide, of course, but peoples in a banned country can still have serious problems. Fiat ramps get worsen, banks refuse payments, exchanges shut, and regular users face issues when buying and selling.
So yes, while Bitcoin itself continues to function, users access and liquidity may be extremely restricted there. Users can still use VPNs and P2P, but it's not the same as before. The ban is a very real one for users in that country. Not to mention the possibility of being arrested, gossiped by neighbours, and what not...
People forget that they are actually in a constant struggle and war against their own governments, and to think that some believe the all governments protect their own people! In the extreme cases of attempts at controlling its citizens, many countries have implemented different worldwide taxation laws or even exit taxes for citizenship and changes like that so even if you do not like the rules that are presented to you, they want to punish you for choosing to go somewhere else! We live in quiet crazy times and most people are distracted by things that are not so important.