If the capacity for transactions was simply increased, more people could be paying fees, albeit smaller, but this increased capacity would eventually balance out to higher fees in total.
Be my guest to open a topic about increasing the capacity, I'm grabbing my popcorn!
Common, do it, I can't wait for it!
As for me, I was just this week shown how it's physically impossible to have blocks larger than 4MB because only nodes that own a Titan computer and their own private global fiber optic cables would be able to cope with larger blocks!
Whoever told you 4MB required a Titan Computer and fiber optic cables were required , is spreading misinformation.

Dogecoin does 1MB per minute , so in a 10 minute BTC Block window , Doge pulls off 10MB per 10 minutes.
Doge is still PoW
(for the moment), which PoW nodes do very little compared to other algorithms.
Average Cable internet runs 20 Mbps
(=2.5MB per second) and 100 Mbps (=12.5MB per second)
So the slower one can transmit a 10MB block ~ every 4 seconds, meaning in 10 minutes the block can be transferred/relayed 150X.
The faster one can transmit a 10MB block every 1 second, meaning in 10 minutes the block can be transferred/relayed 600X.
Faster Connections would relay more while slower connections would relay less.
But say you have 1000 nodes running 100 Mbps, combined they alone would relay 600000X in 10 minutes.
Modern PCs have no issue, with this.
Whoever told you the 4mb limit nonsense, let them know they are wrong.
And you only have to point out the fact Doge is already doing 10mb per 10 minutes to prove it.
*Now a Node that would need massive power is Solana, it has a max blocksize of 128MB*Have a Great Day.