Yes the seats should be larger with more room!!
Increased fares would help.
And until that time, all the seats in the Coach Cattle Car should be firmly secured at a comfortable yet upright position - no more reclining for anybody. Until you have lived through someone putting their seat all the way back into your lap, and then taking a nap until the plane lands, murderous thoughts develop quickly. Flight attendants are oblivious and the aggrieved party ends up losing it. That’s why I don’t fly any more - don’t want to end up in jail.
Make the board of directors from every airline hold the meeting sitting in these things.