Super ultra mega unpopular opinion that will get me cancelled:

Bitcoin would be just as decentralized with 8 or 16 MB max block size. Even today, we rarely hit >2.5 MB

Millions of people would benefit from it every day. But the reason we don’t do it is political + business related (there’s way too much money in custodial solutions that profit when Bitcoin has high fees that most people aren’t willing to pay).